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Sustain Sci
Sustain Sci
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10.1007/s11625-022-01182-3
Article
Leveraging the potential of wild food for healthy, sustainable, and equitable local food systems: learning from a transformation lab in the Western Cape region
http://orcid.org/0000-0002-4996-7234
Pereira Laura M. 1234
Kushitor Sandra Boatemaa 45
Cramer Carolyn 46
Drimie Scott 467
Isaacs Moenieba 8
Malgas Rhoda 9
Phiri Ethel 10
Tembo Chimwemwe 10
Willis Jenny 11
1 Centre for Food Policy, https://ror.org/04489at23 City University of London , London, UK
2 https://ror.org/0145rpw38 Stockholm Resilience Centre , https://ror.org/05f0yaq80 Stockholm University , Stockholm, Sweden
3 Global Change Institute, https://ror.org/03rp50x72 University of the Witwatersrand , Johannesburg, South Africa
4 Centre for Sustainability Transitions, https://ror.org/05bk57929 Stellenbosch University , Stellenbosch, South Africa
5 Department of Community Health, Ensign Global College, Kpong, Ghana
6 Southern Africa Food Lab, https://ror.org/05bk57929 Stellenbosch University , Stellenbosch, South Africa
7 Nutrition Division, Department of Global Health, Faculty of Health and Medicine Sciences, https://ror.org/05bk57929 Stellenbosch University , Stellenbosch, South Africa
8 https://ror.org/027y0fw80 Institute for Poverty Land and Agrarian Studies (PLAAS) , https://ror.org/00h2vm590 University of Western Cape , Cape Town, South Africa
9 Department of Conservation Ecology and Entomology, Faculty of AgriSciences, https://ror.org/05bk57929 Stellenbosch University , Stellenbosch, South Africa
10 Department of Agronomy, Faculty of AgriSciences, https://ror.org/05bk57929 Stellenbosch University , Stellenbosch, South Africa
11 Institute for Social Development and Centre of Excellence in Food Security, https://ror.org/00h2vm590 University of the Western Cape , Cape Town, South Africa
Laura M. Pereira laura.pereira@su.se
Handled by Alexandros Gasparatos, University of Tokyo, Japan.

06 7 2024
10 8 2022
19 9 2024
s11625-022-01182-3https://creativecommons.org/licenses/by/4.0/ This work is licensed under a BY 4.0 International license.
https://creativecommons.org/licenses/by/4.0/ This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/.

Food insecurity and diet-related diseases do not only have detrimental effects to human health, but are also underpinned by food systems that are environmentally unsustainable and culturally disconnected. Ensuring access to a healthy, affordable, and sustainable diet is one of the greatest challenges facing many low- and middle-income countries such as South Africa. These challenges in accessing a diverse diet often persist despite biocultural richness. For example, South Africa is globally recognised for its rich biodiversity, an ecologically unrivalled coastline, and a rich body of traditional knowledge amongst wild-food users. In this paper, we explore the potential that coastal wild foods as neglected and underutilised species (NUS) can play in local food systems in South Africa’s Western Cape Province. Following a previously established transformation lab (T-Lab) method, here we report the observations and outcomes emerging from a two-day workshop held in May 2019 with a group of 40 actors involved in the local food system in diverse ways. Farmers, small-scale fishers, indigenous knowledge holders, representatives from non-profit organisations, chefs, bartenders, academics, activists, conservationists, and government officials were brought together with the aim of strengthening an emerging coalition of coastal wild food actors. Findings highlighted the existence of a fledgling economy for coastal wild foods, driven by high-end chefs. The T-Lab was essentially a tool of knowledge co-production around food system transformation and helped to surface deeply embedded issues on land, race, history, and culture that warrant engagement if a better food system is to emerge. In a country that is drought prone and vulnerable to climate change, a more resilient and sustainable food system is a necessity. But defining alternative governance systems to shift towards a healthier, more sustainable, and more equitable food system will require concerted effort across all stakeholders.

Fynbos
Healthy diets
Neglected and underutilised species
South Africa
Sustainability transformations
T-Labs
Coastal wild foods
==== Body
pmcIntroduction

On 24th January 2022, Kenyan vegetables attained the status of UNESCO intangible culinary heritage of humanity and were added to the Register of Good Safeguarding practices (UNESCO 2022). This was thanks to a commitment made by the government in 2007 to address the decline in food diversity and the threat of modern lifestyles to traditional foodways. This listing of Kenyan vegetables adds to a collection of over 25 food-related practices, including Mexican traditional cuisine, the Senegalese national dish Ceebu jën (Thieboudienne), Japanese food known collectively as Washoku, street hawker food in Singapore, and even Nsima (porridge made from maize meal) in Malawi. The importance of local cuisines, their associated cultural practices and knowledge, and the food system diversity that they promote are thus increasingly being recognised around the world. Unfortunately, this comes largely as a response to the decline in food system diversity that is observed globally (Khoury et al. 2014). In the face of such threats, preserving biocultural diversity is central to ensure the nutrition, resilience, and adaptive capacity of indigenous peoples and local communities who collectively maintain the longest ongoing human experiences with the provision of food under environmental change; a core component of global food security (Argumedo et al. 2021).

Alternatives to the current dietary trajectory would require a food system that is both good for people and the planet, and is developed through holistic approaches to the social–ecological factors that determine local food systems. Achieving a diversity “triple win” of production system diversity, agro-biodiversity, and dietary diversity could positively impact health for the poor who are often unable to access the healthier and more diverse diets available to the wealthier segments of society (Pereira 2017; Frison and Clément 2020). One such move to advance more sustainable food systems at a global level is through the sustainable use of neglected and underutilised species (NUS) (Mbhenyane 2016, 2017; Mabhaudhi et al. 2018; Hunter et al. 2019; Akinola et al. 2020). Hunter et al. (2019: 710) describe NUS as “useful plant species which are marginalized, if not entirely ignored, by researchers, breeders and policy makers (Padulosi et al. 2013)”.

In this paper, we take a broader view of the above definition of NUS, moving beyond plant species to include terrestrial, freshwater, and marine organisms. This is done to reflect the diversity of wild coastal food resources available in the Western Cape area of South Africa, where our case study is located. In the fynbos biome of South Africa’s Cape Floristic Region (CFR), terrestrial and marine NUS are gradually being recognised for their potential as climate-resilient and nutritionally dense foods that can improve food security, diversify diets, and preserve food culture (Mbhenyane 2017; Tembo-Phiri 2019; Willis 2019), as has been shown elsewhere in the world (Biodiversity International 2017). Fynbos edible species are adapted to their local natural environment and there is a rich accumulated local knowledge about their use, rendering them culturally appropriate for adoption amongst certain user groups (Botha et al. 2020; De Vynck et al. 2016a; Singels et al. 2016). In this sense NUS have the potential to alter the trajectory away from the nutrition transition currently observed in South Africa, characterised by shifts away from unrefined foods towards unhealthy foods, and thereby to spark the emergence of local food systems that offer both nutritious and healthy food and are as aspirational as Western diets (Pereira et al. 2019). Furthermore, there is the added benefit that such NUS can potentially contribute to the development of a local economy, generating jobs and livelihoods that draw on local people’s knowledge and experience of local ecosystems.

A growing body of literature on useful wild-harvested food is addressing some of the existing knowledge gaps about the use value, economic contribution, governance, and conservation of edible species in South Africa (e.g. Chakona and Shackleton 2019; De Vynck et al. 2016a; Garekae and Shackleton 2020; Shackleton and Shackleton 2004). However, few studies have focused specifically on NUS, and fewer still (e.g. De Vynck et al. 2016b) have advanced beyond a narrow focus on plants. An account of how to address food system challenges in a country such as South Africa that has historical deficits and rising inequality (Satgar and Cherry 2020) and at the same time contains some of the most biodiverse hotspots in the world (Myers et al. 2000) may shed light on similar challenges elsewhere. It may also help to inform regional and international policy on NUS and their roles in enhancing food security. In this sense, a case study of coastal wild foods (of which many are NUS) in the fynbos region of South Africa can offer an enlightening example of how to navigate socio-economic, political, and cultural tensions in an attempt to preserve food system diversity through biocultural heritage.

However, as has been increasingly shown in the literature, food system transformation cannot be undertaken just through research and its dissemination. Instead, it would require far more engaged action and transdisciplinary processes that include a wide range of food system stakeholders (Rivera-Ferre et al. 2013; Hebinck et al. 2018; den Boer et al. 2021). There remains a dearth of robust examples about the methodologies and approaches that should under-pin the activities of such food-related multi-actor platforms, where communities of academics, practitioners, policymakers and citizens are coming together to co-design innovative projects around shared visions and objectives (López Cifuentes et al. 2021).

Transformation labs (T-Labs) have been proposed as a transdisciplinary methodological approach appropriate for food system transformation action research (Ely et al. 2020; Scoones et al. 2020). By design, T-Labs can strongly support such as agenda, as they elevate the role of society in seeking solutions to wicked problems, establish a transdisciplinary community of practice, enable critical self-reflexivity amongst participants, seek opportunities for experimentation, confront power, exercise agency, and take responsibility for the unfolding process (Pathways Network 2021). In essence, the transdisciplinary research approaches implicit in the T-Lab methodology seek to produce transformative knowledge outside academic institutions by forming collaborative partnerships with society (Pereira et al. 2021). Previous work has shown that a T-Lab approach can be useful in bringing diverse stakeholders together to think of solutions in the context of food systems (Ely et al. 2020; Pathways Network 2021), including the fraught South African food system (Pereira et al. 2020a).

In this paper, we explore some of the critical aspects of incorporating coastal wild foods into local diets using a T-Lab approach. We select this type of transdisciplinary approach as this is neither a simple nor a linear process, and would thus require a great deal of careful negotiation, honest dialogue, and participation by a range of stakeholders. With this in mind, we document how a T-Lab held in May 2019 aimed to bring together a diverse group of 40 stake-holders involved in the local food system in diverse ways. These actors gathered for two days in Cape Town for a process aimed at strengthening the contribution of indigenous coastal foods to a more sustainable and healthy food system in the Western Cape. We build on the legacy of T-Labs in the Western Cape region, but focus on the role of coastal NUS as a potential leverage point for shifting diets towards a more sustainable and equitable food system (see Abson et al. 2017). In the next section, we unpack the context of coastal wild foods in the Western Cape Province, and we then go on to elaborate on the T-Lab as a process and method. The results from the workshop are arranged according to the thematic areas that emerged from the participatory group process. We discuss these results and, in particular, the challenges and opportunities identified by the participants in the broader context of policy interventions for more sustainable and equitable diets. We also reflect on the learnings from using T-Labs as a transdisciplinary process.

Methods

Methodological approach: transdisciplinarity and T-Labs

A facilitated process that enables dialogue between diverse stakeholders in a complex social–ecological system can contribute to the change required for deep social innovation and transformation of that system (Mair and Hehenberger 2014). Such a process enables dialogue, sense-making, reflection, and reflexive learning, while supporting the reframing of issues in ways that allow solutions (or attempts to experiment and transform) to be co-created and co-realised (Sharpe et al. 2016). Hence, the method we used for this process was a transformation lab or T-Lab (Charli-Joseph et al. 2018; van Zwanenberg et al. 2018; Ely et al. 2020; Pereira et al. 2020a).

Transformation labs build upon the concept of social innovation labs as carefully designed and facilitated processes aimed at supporting multi-stakeholder groups to address complex social–ecological system problems by creating “safe enough” spaces to discuss and launch innovations (Pereira et al. 2020a: 6). Furthermore, T-Labs provide experimental niches in which people with diverse backgrounds, perspectives, interests, and areas of expertise work together to understand complex systems and the problems they generate, and to identify, co-design, and prototype novel ways of addressing the underlying causes of those problems (Gryszkiewicz et al. 2017; Olsson 2017). Therefore, a T-Lab is designed to afford a diverse group the opportunity for deeper engagement around complex issues to foster innovation and transformation within social–ecological systems (Pereira et al. 2020a). By building knowledge, networks, and commitment, a T-Lab can help create a collective sense of the need for change (within and beyond the stakeholders directly involved), identify strategies for affecting change, and identify which actors have transformative power (Drimie et al. 2018; Pereira et al. 2020a). In this way, the process can develop a change strategy that tests multiple solutions, which together could solve the challenge. It can help to create early ideas of interventions, to frame the challenge, build momentum for action, find the innovators, and increase their capacity to address the challenge more effectively.

A key dimension of the coastal wild foods T-Lab was to provide a platform for participants to learn from and share with one another, while delving into the threats and opportunities related to coastal foods. As such, the T-Lab aimed to foster practical connections, mutual learning, networking, and reflections on the prevailing food system to establish opportunities to incorporate coastal wild foods and NUS equitably into the Western Cape food economy. In constituting an alternative food system, NUS and other coastal wild foods are at a disadvantage. Most actors associated with these foods do not fit well within the existing system configuration of conventional agriculture dominated by a few powerful organisations that operate within an exploitative economic system that reproduces and benefits itself (Greenberg 2017). Alternative ideas often require protective spaces, away from the adverse selection pressures created by existing systems, not only for actors to improve the performance of more sustainable practices, but also to develop new path-breaking system configurations (van Zwanenberg et al. 2018).

Experience with previous T-Labs on similar topics pointed to the need for practical outcomes that would enhance participant agency (Pereira et al. 2020a). This was done by fostering personal reflection, networking, and strategic thought to stimulate mutual learning and new connections. The objective was for participants to work together in identifying practical steps to build new practices around coastal wild foods in the Western Cape. In this instance, the T-Lab process was built on a previous set of T-Labs established in the region, also to discuss food system transformation. Therefore, there was already an interested core group of food system actors eager to be involved (Zgambo 2018). The design and facilitation of these T-Labs were undertaken by two of the authors of this paper.

Another key dimension of the T-Lab was to build from an emerging understanding of issues towards new solutions and responses. Deliberations on how to transform the food system solicited a wide range of ideas and activities. These ranged from challenging dominant structures and practices, to seeking political alignments, from lobbying for supportive policy measures to creating new flows of coastal wild foods, and from fostering shifts in consumer and cultural norms to producing new kinds of knowledge. Here, the T-Lab process design was instrumental in building a collective sense of the need for change and an understanding of where the opportunities for transformation might lie.

As the T-Lab process is inherently relational (i.e. about individuals engaging with each other over a duration of time with a clear focus), it required a critical mass of different stakeholders who needed to relate to one another, sometimes under tense circumstances (Pereira et al. 2020a). A diversity of perspectives in such processes potentially allows for the emergence of innovation when different people from different backgrounds interact to address challenges with their collective ideas and creativity (Bennett et al. 2016). Part of this is an openness to enable learning about alternative perspectives on possible solutions. This is important to open up new learning and interpretation possibilities and to explore the breadth of possible solutions and responses. However, engaging in alternative perspectives in a highly inequitable and unjust system can challenge participants to the point that discomfort may lead to overt disagreement. The T-Lab design should thus include opportunities for different voices and perspectives to be heard, as well as chances to diffuse tensions where necessary (Drimie et al. 2018). In this regard, the emergence of new ideas and relationships was anticipated as much as the likelihood of diverse perspectives that could raise tensions. These were important factors for the design, but also impact the kinds of results that can emerge from such a process as participants raise the issues that are closest to their hearts.

Design and structure of the T-Lab on coastal wild foods

Ideally, the form that a T-Lab will take depends on the local context and the people involved. We aimed to cover a broad range of actors in the production, processing, distribution, governance, and research in the Western Cape food system. Invitations were sent to a network of food system innovators, created by the Southern African Food Lab through previous T-Labs and community engagements. The guests were asked to suggest other stakeholders involved in the coastal wild food industry using a snowball sampling method. Invitations were then sent to the suggested parties. To ensure adequate representation from the marine and fishing communities—a group crucial to the conversation on local food systems—connections were actively sought through a local NGO, Abalobi, and through researchers who had been working with coastal fishing communities in the region.

A total of 40 participants took part in the event over 2.5 days (Table 1). The participants were researchers, farmers, indigenous knowledge holders, chefs, retailers, and government officials. Although only one actor is listed as an indigenous knowledge holder, many of the representatives from the NGO coastal actor group also identified as indigenous peoples from the Western Cape. City University of London granted ethical approval for the workshop (Soc-REC/80025567/22-04-18), and all participants signed consent forms for the use of their photographs and input during the T-Lab process.

The T-Lab was conducted on 2–3 May 2019 at Food Jams (Salt River, Cape Town) and comprised two objectives: (a) to strengthen an emerging coalition or community of coastal food actors from across the system by stimulating new connections and identifying practical steps to build practice and (b) to identify practical ways to support this coalition by building on ideas, partnerships, a sense of purpose, and practical action. Participants were invited to bring samples of coastal wild food produce and products to exhibit for the duration of the workshop.

A transdisciplinary and adaptive approach was used to convene the meeting with frequent feedback and guidance asked from participants before and during the workshop. Developing an appreciation of where human agency lies within local food systems (particularly the participants’ agency) and how they could support ideas to be put into practice required a diversified programme of engagements. This was partly in recognition that a rigid structure can inhibit participation (Pereira et al. 2020a). As such, the design of the T-Lab included: (a) facilitated sessions (exploring key political and policy framings), (b) guided plenary conversations and small group conversations, (c) individual-focused activities, including “speed dating”, (d) personal reflection, (e) free writing or journaling, and (f) informal interactions over shared meals, refreshment and, comfort breaks; see Cramer et al. (2019) for more information on the agenda. At the end of the T-Lab, a coastal wild food social gathering, or “Food Jam”, was held. Participants and guests were able to deepen connections by preparing, cooking, and sharing a portion of the meal featuring coastal wild foods. More details of some of these sessions are provided in the following section.

Responsiveness to participants’ language and food needs was considered as part of the process. Where desired, participants could express themselves in their mother tongue (generally Afrikaans) instead of English, with translation available for those who needed it. Workshop meals were prepared by one of the participants using indigenous coastal food ingredients (Fig. 1). Participants with vegetarian or vegan meal preferences were appropriately catered for.

Data collection and analysis

The sessions were audio recorded. In addition, three note takers (SBK, JW, and CC) typed notes during the discussions. The facilitators also took notes on clipboards for all workshop participants to see and comment upon. All the notes and audios were compiled into a folder. After each session, the notes were reviewed to fill in gaps. The audiotapes were used to supplement these notes.

The analysis was guided by the topics discussed during the T-Lab to convey the spirit of the conversations and discussions. Much reliance was placed on the flipchart notes that were taken during the sessions, as it was sometimes difficult to make sense of the audio recordings from the workshop. These synthesised descriptions of the discussions, which were marked out in real time with the participants, formed the basis for the sections laid out in the results.

Case study: South African food system and status of wild food in the Western Cape

The South African food system faces wicked challenges that are globally relevant. The country has one of the world’s highest rates of income and wealth inequality and increasing concerns around poverty and unemployment (Stats 2018). Also, in a country that is drought prone and vulnerable to climate change, a more resilient and sustainable food system is imperative. However, it is difficult to shift towards an alternative food system that is simultaneously healthier, more sustainable, and more equitable (Hebinck et al. 2018; Drimie et al. 2018). Within these environmental constraints, South Africa is grappling with socio-economic challenges such as unaffordable healthy diets for many poor households and the continued unequal distribution of land (Greenberg 2015). Most (87%) of all arable land in South Africa is owned by about 35,000 white commercial farmers, while approximately 4 million small-scale black farmers work the remaining 13%, often with little connectivity to the formal food system (Aliber and Cousins 2013).

The limited socio-economic transformation in South Africa means that more impoverished communities, as before and during apartheid, comprise people of colour. These communities have been increasingly exposed to toxic food environments (Kroll 2017). These food environments are characterised by high exposure to Western diet foods that are inexpensive, highly accessible, and heavily marketed, whilst being high in refined carbohydrates, sugars, fats, and salty processed animal-source foods (Brownell and Horgen 2003; Popkin et al. 2012). Furthermore, ‘Westernised’ diets are culturally disconnected from the local landscape, usually requiring production practices that supersede and dramatically modify the prevailing socio-cultural and environmental context. Therefore, the consolidation of power and profit within the food value chain, food insecurity, and an ongoing nutrition transition (where a Westernised diet supplants traditional food consumption patterns) leave the poor to shoulder the triple burden of malnutrition (May 2017). Indeed, resource-poor communities carry the weight of this toxic food environment on their bodies, which is built upon the low-cost, highly processed foods that are consumed to satiate hunger (Igumbor et al. 2012), with limited consumption of fruits and vegetables (Okop et al. 2019). Ultimately, the combination of markedly high levels of inequality and food insecurity amongst a large proportion of the population leads to an increased burden of non-communicable diseases such as obesity and diabetes, resulting from the transition to cheap and unhealthy diets (Agyemang et al. 2015; Sartorius et al. 2015; Kushitor et al. 2021).

In this socio-economic and social–ecological context, a fledgling economy in coastal NUS is being driven by chefs of high-end restaurants in the Western Cape (Fig. 2). Ecologically, the Western Cape is embedded in natural fynbos vegetation, named for its fine-leafed plant species. The area is a recognised global biodiversity hotspot with unparalleled concentrations of plant and animal species. Coastal wild foods are a relatively forgotten aspect of the traditional Cape diet. They include many NUS, including marine organisms such as kelp (e.g. Porphyra capensis Kützing) and sea lettuce (Ulva capensis J.E. Areschoug), as well as terrestrial species such as veldkool (Trachyandra falcata (L.f.) Kunth), sandkool (Trachyandra divaricata (Jacq.) Kunth), soutslaai (Mesembryanthemum crystallinum L.), and dune spinach (Tetragonia decumbens Mill.) (Table 2). In addition, species such as sardines (Sardinops sagax Jenyns) and anchovies (Engraulis encrasicolus Linnaeus), which are fished and reduced to fish meal by industrial trawlers, are also key underutilised species (Isaacs 2016a). This is because fish consumption is reduced to tins of processed fish and rarely includes these species as a fresh food source. Several NUS appearing in the high-end food industry such as Cape lobster (Homarinus capensis Herbst), West Coast rock lobster (Jasus lalandii H. Milne-Edwards), and scallops (Pecten sulcicostatus Sowerby II) are native to the Western Cape and coastal shores that delimit the Cape Floristic Region.

Nonetheless, the natural biodiversity that underpins the persistence of fynbos wild edible species is currently threatened by conventional agriculture, urbanisation, encroachment by alien invasive species, and climate change (Midgley and Bond 2015; Richardson et al. 2018; Ntshanga et al. 2021). Furthermore, much of the traditional ecological knowledge (TEK) around the use of NUS in the Cape Floristic Region is considered either lost or declining (Philander 2010; de Vynck et al. 2016a; Botha et al. 2020). Historically, various marine and terrestrial plant species are reported to have been used in everyday life by the San and Khoi peoples for sustenance, health maintenance, and disease prevention (Valente et al. 2014; Bvenura and Afolayan 2015; de Vynck et al. 2016a; Manning 2018; van Wyk and Gericke 2018). Coastal wild foods of the Cape Floristic Region are diverse and include terrestrial and marine taxa, several with dual food and medicinal uses (Table 2). Some of these species are still in use today (de Vynck et al. 2016a).

From a dietary perspective, recent research has focused on the medicinal and nutritional qualities of coastal wild food. For example, Singels et al. (2016) and de Vynck et al. (2016a) have reported a readily available staple source of carbohydrates in the form of many coastal underground storage organs, while coastal wild plants such as soutslaai and sour fig (Carpobrotus edulis) have been found to have antioxidant and antibacterial properties. Soutslaai, in particular, accumulates significant quantities of sodium, calcium, and micronutrients such as iron, while wild sorrel (Oxalis pes-caprae) contains high levels of vitamin C (El-Darier 1992; Shevyakova et al. 2003). Aromatic plant species have been used for cosmetic and medicinal purposes as perfumes, soaps, repellents, and even for their antibiotic properties (van Wyk and Gericke 2018). More recently, several of these aromatic species have been trending in elite South African cuisine (Lindow 2017). For example, previously eaten as a snack, the fruits of the sour fig and slangbessie (Lycium ferocissimum) also appear in current food trends, which may also be extended to include a number of ‘underutilised’ fish species like snoek (Thyrsites atun) and Cape bream (Pachymetopon blochii Valenciennes) (Willis 2019). Snoek is a significant and highly preferred food option among poor coastal communities. As a result, any possible increase in its use by chefs (e.g. as part of a high-end restaurant trend that seeks to source fresh fish) could reduce the affordability of this high-quality and often cheap source of protein, making it less accessible to social segments that are vulnerable to food insecurity (Isaacs 2013). Similarly, certain kelp species have also received some attention in restaurant menus and in foraging courses offered in the Western Cape. Some examples include sea asparagus (Salicornia meyeriana), agar weed (Gracilaria gracilis (Stackhouse) M. Steentoft, L. M. Irvine and W. F. Farnham), and sea lettuce (e.g. Ulva rigida C. Agardh.).

Results

Below, we present the core findings that emerged from the rich discussions at the workshop. As this was a transdisciplinary process, and as such had to follow the needs and desires of the participants rather than a strict conventional research structure (e.g. with a focus group), the results are a synthesis of the key themes, concerns, and suggestions that the participants raised. We structure this section first to describe the main threats facing the revival of an equitable coastal wild food system, and then provide examples of where there are opportunities to be leveraged according to the participants.

Challenges for coastal wild foods

On day one, each of the participants contributed to the discussions from their own unique perspectives. Generally, participants expressed passion and enthusiasm for creating a just food system that espouses identity, environmental conservation, job creation, and food justice. They recounted knowledge from their lived experiences through gardening, advocacy, and cooking demonstrations. An important discussion arose from the perception that food in South Africa could be a very painful topic. For some, this pain had stirred up a passion to work on indigenous food, as a means of making healthy, nutritious food accessible to all. Such efforts included showing people how to grow food with limited resources. To connect people with their environment, some of the lessons focused on the origins of food and how to encourage indigenous people to use indigenous wild ingredients to improve food security. According to one of the chefs, “Food is something I can experiment (with) and introduce to the community to inspire creativity and limitless options” (CHE3). Through their passionate discussions, participants identified a series of threats to a sustainable coastal wild food system. Although the two are closely linked, these include concerns about social and environmental factors, coinciding with our social–ecological framing of the situation.

Socio-economic threats

Youth apathy was one of the dominant social threats mentioned by the participants. There was a strong sentiment about a disconnect between the next generation not wanting to get involved in small-scale fishing or farming. Participants cited drugs, crime, gangs, social status, legislation, production cost, and government policies as contributing to this apathy. Youth who are more willing to engage are seemingly up against perceived difficulties that deter them from getting involved.

“Even if your father was a farmer, you cannot have the permit, because there is too much legislation, the cost of production is scary to the youth.” (NGO4)

Linked to this was a realisation that youth aspirations for improved livelihoods clashed with their consumer preferences for the type of food, where they purchased it, and from whom. According to the participants, the livelihood aspirations, especially of the youth, cut across economic and racial dimensions, but were negated by consumer choices along the lines of economic and social status. Despite knowing that smallholders have fresh and organic produce at relatively lower prices, consumers prefer to shop from the supermarkets for social identity, class reasons, and acceptance. This social quest reduces the market for smallholders and their profit margins.

“People don’t want to buy from smallholders or at the traffic light because it is not as cool as buying from the SPAR.” (CHE4)

Associated with youth apathy was the loss of knowledge from previous generations, referred to in the literature as traditional or local ecological knowledge (TEK/LEK). Without generational knowledge transfer, knowledge about edible wild food species and how to use, prepare, and eat them is rapidly being eroded. Even something as fundamental to the local food system as making anchovies from sardines is being lost. Furthermore, it was acknowledged that there was no growth opportunity for sustainable NUS markets, especially when few people know how to prepare the foods or want to eat them.

“It is going to take someone with family histories to make these anchovies. There is a whole process of curing for about 9 months to make anchovies. Anchovy that is not done properly is terrible, horrible, disgusting. Currently, only a few people know how to make it.” (FAR1)

Another related aspect was how the participants saw the evolution of capitalism in South Africa as a challenge to sustainability, and a process that disfavours smallholders. Capitalism was said to have produced elite capture of resources, including ocean grabbing and market exclusion for local communities. The system also prevented diversity of service distribution.

“In the current systems, the fishers cannot display their products and be the owners of it. Somebody comes and buy(s) it from them and takes it (to) a fancy market and the face of the fisher is not seen.” (NGO5)

Finally, policy is not perceived to be able to handle these threats adequately. The Policy for the Small-Scale Fisheries Sector in South Africa was supposed to enable smallholder fishers access to fishing rights, improve their food security, and address sustainable development, empowerment, and inequality (particularly gender equality). However, the policy is yet to be implemented, leaving many small-scale fishers in limbo, because the government has not indicated when and how the policy will be implemented (see Isaacs 2016b; Gammage and Jarre 2020). At the time of this paper, at the national level, about 22,640 fishers have applied for permits through co-operatives, but only about 10,000 permits will be issued according to the Department of Agriculture, Land Reform, and Rural Development, with the bulk of the permits issued to commercial fisheries and other sectors. This had reinforced a significant concern amongst participants that local fishing companies will export abroad, excluding small-scale fishers from markets as they do not have the resources and time to trade in such spaces.

“All the fish that they are extracting are going for export to European or US markets.

Severe capitalism that does not favour diversity. It likes to conform into the boxes that it has created in order to sustain itself. Everything is big, bigger, biggest.” (CHE4)

Environmental threats

Plastic pollution was identified as a concern for marine edible species. According to participants, plastics enter the sea through onshore littering by beachgoers and deposition from upstream rivers. Plastics often entangle marine wildlife or are ingested by fish, causing them to choke, become sick, and die. Some fishers reported seeing these impacts on a daily basis.

While it was recognised that coastal wild foods provide significant sources of food for local households and markets, it was also acknowledged that some practices of wild capture and foraging can have negative environmental impacts if practised unchecked, or by free riders with little vested interest in the persistence of wild species. For example, some fynbos species such as sorels (Oxalis spp.) were perceived as endangered by some participants due to their extensive foraging. As noted above, much of the fishing and harvesting is not undertaken by local communities for local consumption, but rather species are targeted only for their commercial value. This is increasingly true for some plant NUS, which are becoming more popular in restaurants, but are not being used by local communities (Willis 2019). Considering the environmental threats facing some plant NUS, it is unfortunate that few resources are invested in research on domesticating these species for use in the modern agrarian economy. A discussion with researchers from the University of Stellenbosch noted that preliminary results from recent planting trials show that local fynbos edibles such as soutslaai and dune spinach may be options for local use, with the provision that their production is undertaken in an ecologically sustainable manner (Fig. 3).

Navigating tensions and challenging the status quo for a more inclusive food system

A strong outcome of the workshop discussions was the commitment of the participants to use local foodways to express and create identities linked to biographic details and geographic positionality. Biographic identities were linked to their reflection on childhood memories about meals and time spent in the garden or on the farm growing their own food. Some respondents shared beautiful memories of long meals with talking, joking, and drinking around the table decked with indigenous foods. The absence of these foods in the market was uncomfortable for them. According to one participant, she was passionate about using snoek to create a Capetownian identity. The motivation for creating these identities was to reclaim lost heritage due to colonialism and apartheid.

“You have to deal with those traumas that are unspoken… It’s a very deeply spiritual work. And you don’t see it because it’s very private also, but it has to be part of what it is that you do.” (NGO10)

The conversation on day two revolved on individual next steps. During this discussion, a few difficult issues emerged such as the juxtaposition between, for instance, longtime indigenous food users connected to food through personal heritage, and contemporary food entrepreneurs who do not share those heritage ties. Several participants had years of work and expertise on different aspects of coastal wild foods, while for some participants coastal wild foods were a relatively new concept or something that they had not deeply thought about before. This led at certain points to difficult conversations around next steps that would support existing initiatives or begin something new and a further conversation about what that should be. In particular, deep questions emerged about what it means to be ethical in this domain of work, considering the deep hurt and contestation of whose knowledge this was, and who had rights to that knowledge following centuries of exploitation.

“How do I custodian [other people’s cultural heritage through cooking recipes] without taking charge, taking control of it, and taking ownership of it and then turning it into some strange sort of elitist, bastard version that runs away into the distance? …I want to do a lot more of trying to figure out how to achieve that exact balance.” (CHE3)

Two participants, both of whom have worked with (and as) indigenous knowledge holders for many years, laid out challenges to privileged participants in the system. They commented about indigenous knowledge exploitation and their inability to benefit from it after it was shared with people in privileged positions. According to them, this exploitation is historical and persistent:

“It is such a precarious space at the moment, because you have a heritage of genocide of indigenous people. … How is it that indigenous knowledge is in non-indigenous, even colonial spaces?” (IND1)

These stark confrontations forced the NUS users in the Cape Town food industry to reflect on their role in the system, whether it perpetuated exploitation or instead enabled local communities to have agency over their local resources. The participants made some of the following commitments: (a) to have conversations with custodians of indigenous knowledge; (b) to let chefs take cooking lessons from custodians of indigenous knowledge; and (c) to let bartenders and restaurants openly share information, with their staff and clients, about where they source their indigenous food, knowledge, and recipes. However, even these commitments were seen as insufficient in building a truly transformed local food system.

“‘Oh, we need to tell the story, we need to see the face of the farmer. That’s the common thing. But ultimately, what ends up happening is, even if that’s your intention, it doesn’t go very far because the reality of the farmer or producer or the person you’re trying to support doesn’t really change. Not in the long run.” (NGO10)

The discussion then turned to questioning whether it was possible to truly honour and acknowledge (as distributors and chefs) all the people whose knowledge has enabled the cultivation and use of these plants. This clarified the need to move away from generating the very short-term solution of financial exchange and support to a far more radical question around how to support the legal struggles for people whose rights have been undermined for generations. This challenge opened up the space for a radical debate about the role of food and our diets as deeply political. One participant challenged others to use the T-Lab as a space “where people can stick in. Because if people who hold the kind of clout that people in this room do, are able to push through the political agenda a little bit more, that would change things quite drastically. Or potentially could change things quite drastically” (IND1).

Interestingly, these exchanges highlighted the issue of trust between the participants. Some participants were reluctant to commit to personal next steps until they could see commitments from others who were less vulnerable, and once that trust was there, they would be willing to work more collaboratively. This iterated that trust in a contested system, such as that of food, takes time to develop and that issues around power dynamics needed to be carefully considered: “I…feel that this space is not safe enough for me to talk about my deep reflections” (Anonymous1). This galvanised other participants to commit to taking some actions to make the space feel safer by making sure that they are present in the cause, asking questions, and taking time to listen to others, not assuming what the answers will be. An ‘open mind and an open heart’ were recognised as critical to facilitate that listening.

Discussion

“Results” highlighted some of the critical challenges facing the equitable invigoration of a coastal wild foods system in the Western Cape, but it also brought to light the significant interest in undertaking the necessary work. Here, we situate the discussions raised in the T-Lab within broader themes of how coastal wild foods could contribute to more sustainable and healthy diets, how concerns over knowledge of these foods can be managed more inclusively, and what are the lessons learned for food policy. We conclude with a reflection on the overall T-Lab process.

Coastal wild foods as a cornerstone of sustainable and healthy diets: potentials and pitfalls

Sustainable and healthy diets are dietary patterns that are accessible to all, socially and culturally acceptable, safe, nutritious and desirable, and have low environmental impact (FAO/WHO 2019). At this stage, more information needs to be generated to advocate for the stronger incorporation of coastal wild foods into local diets, such as identifying their nutritional properties. Free access to sound nutritional and food safety information in the form of dietary guidelines that include medicinal, antifungal, and antimicrobial properties is essential to building public trust in coastal wild foods. For example, extensive research has been conducted to assess the nutritional content of a close relative of dune spinach, New Zealand spinach (Tetragonia tetragonoides (Pall.) Kuntze), which was found to have good nutritional value, essential amino acids, vitamin C, various minerals, and high antioxidant activity (Wheeler et al. 1939; Jaworska and Kmiecik 1999; Słupski et al. 2010; Neubauerová et al. 2011). This is a strong indication that many similar coastal wild foods are likely also to exhibit good nutritional content. Inadvertently, this may also increase their role in combating obesogenic and toxic food environments (Agarie et al. 2009; Bouftira et al. 2012), such as those observed in many parts of South Africa (see above). However, nutritional and food safety analysis can be costly, thus requiring researchers to advocate that existing funding instruments facilitate the investigation of coastal wild food properties as part of co-designed processes that include women and indigenous knowledge holders in the discussion on sustainable consumption.

Coastal wild foods can also have a substantial role in contributing to healthy diets due to their potential in creating environmentally sustainable food systems (FAO/WHO 2019). The adaptation of coastal wild foods to their environment makes them well suited for developing agroecological production systems that facilitate the production of sufficient crop quantities while efficiently utilising already limited resources such as soil, water and nutrients (El-Darier 1992; Cecílio Filho et al. 2017). For instance, due to their halophytic nature, some leafy coastal vegetables (e.g. dune spinach, soutslaai) have been found to be well adapted to drought and high-temperature stresses, with a significant tolerance to the Western Cape’s saline and poor quality soils (Bartels and Sunkar 2005; Yousif et al. 2010; Visscher et al. 2018). In addition, the cultivation of coastal wild foods can become a tool to improve crop and soil quality and increase agricultural water use efficiency in regions experiencing scarcity of water resources (Bohnert and Cushman 2000; Hasanuzzaman et al. 2014; Tembo-Phiri 2019).

Therefore, as noted in the T-Lab, there may be good economic incentives and potential for producing coastal foods through urban horticulture for both consumption and sale. However, any potential coastal wild plant cultivation would need to pre-empt an increase in foraging pressure, which might become unsustainable as more people engage in foraging. Reviving the use of NUS, in an ecologically sound and socially inclusive economy, may offer an opportunity to contribute towards food sovereignty and a more ecologically appropriate agriculture that results in improved dietary diversity, while simultaneously reversing the loss of TEK in the Cape Floristic Region. A good example of this was demonstrated by a Zambian researcher T-Lab participant who brought a taste of chikanda to share at the workshop.

Chikanda is a remarkably meat-like plant product known as African polony or Zambian sausage (Kaputo 1996). This nutritious snack and delicacy is eaten at local markets, restaurants, and on special occasions in small portions such as small cubes (Fig. 4) (Veldman et al. 2014). Chikanda is made from the tubers of different species of several endangered terrestrial orchid genera (Veldman et al. 2018). Davenport and Ndangalasi (2003) estimated that between 2.2 and 4.1 million tubers are harvested per year for this purpose, with species of Disa, Satyrium, and Habenaria and, more recently, the Brachycorythis genera being the most popular. Tanzania’s Southern Highlands are a major source of these orchids, with at least 85 species that have been identified, while 35 marketable tuber species have been identified in Zambia (Veldman et al. 2018). Although there have been many ethnobotanical studies and collections of herbarium orchid specimens in the past (Nyomora 2005; Veldman et al. 2017), population density studies are relatively limited, making it difficult to assess the impact of harvesting on wild populations. Nevertheless, chikanda orchids are harvested, traded, sold, and consumed by local communities and the diminishing quality and quantity of the species used to support this food-related use will make it increasingly rare without the establishment of cultivation protocols (Lalika et al. 2013; Hinsley et al. 2018). In a sense, chikanda has now transformed from being a traditional food produced and eaten in northern rural areas (where foraging orchids was a major aspect of local ecological systems), to a lucrative source of income with an established local value chain that is supported by orchid trade between Zambia and Tanzania, Angola, Malawi, and the Democratic Republic of Congo (Kasulo et al. 2009; Veldman et al. 2018). Despite recent attempts at propagating these edible orchids, they have only started after decades of wild harvesting and urban commercialisation (Davenport and Ndangalasi 2003). The transformation of chikanda from a wild harvested product to a lucrative income source has driven micropropagation trials currently underway at Copperbelt University in Zambia, but cultivars are yet to be developed. The chikanda case outlined above offers a stern warning about the potential pitfalls of commercialising NUS into a status symbol or popular food item, without having the available means for supply from the cultivation stage.

The growth of a NUS food economy in the Western Cape area is not a straightforward solution for sustainable diets and poses its own risks. One relates to the potential ecological damage from wild harvesting, while another risk relates to the potential shift to monocrop cultivation in a region where several vegetation types and microbiomes are already threatened. A third risk is further entrenching of historically established power dynamics and commercialising traditional knowledge without local community buy-in (Willis 2019). So far, the commercialisation of NUS has not contributed to equity in the coastal food system, but has, instead, created new forms of power elites within the communities, whilst “exporting” nutritionally rich foods to service wealthier consumers (Willis 2019). While in certain cases food has “proved to be a useful tool to break down, or at least circumvent power relationships and help gain a deeper understanding of place and culture,” (Haider and van Oudenhoven 2018: 14), there is also a risk of reproducing power relations. For example, the edible insect movement has been characterised as having potential to promote ecological stewardship, biocultural diversity, and food security (Evans 2014), but has failed to deliver large-scale impact in the reinvigoration of NUS. Instead, it has often reproduced power relations in globalised food systems as much as challenging them, with little benefit accruing to those whom it claims to empower (Müller et al. 2016).

Therefore, it is important to ensure that the potential benefits of building a NUS economy in the Western Cape food system do not further entrench the other inequities prevalent in the South African context. This is the critical context within which the coastal wild food T-Lab was situated, and what emerged from the T-Lab is the stark reminder that despite all of their benefits, there is a great potential for capture of NUS by powerful elites. It is of utmost importance to ensure that the economic benefits expected from the increased use and production of NUS are equitably shared with those who have held the relevant knowledge of these species for centuries. In this sense, it is critical that the focus should not just be on commercialisation and cultivation for economic and environmental needs, but also for developing a more inclusive and equitable food system.

Knowledge and equity in enabling a more inclusive food system

The inclusion of TEK and its meaningful integration with scientific knowledge were raised as important first steps towards developing a sustainable and equitable food system based on indigenous foods in the Western Cape region. The T-Lab highlighted that there was a fledgling NUS economy driven by high-end chefs. With access to niche markets, these actors promote among their clients the use and value of NUS as “exotic” sought-after products. At the same time, as indicated in the T-Lab, there is a significant informal NUS use economy amongst poorer people, many of whom value these species as part of their cultural heritage, but nevertheless operate at the margins of formal food systems. While much of the TEK around the use of NUS in the Cape Floristic Region is considered lost, recent studies attest to a sustained knowledge base amongst NUS users in different communities across the biodiversity-rich phytoregion, especially amongst residents with generational ties in these areas (de la Fontaine and Malgas 2013; de Vynck et al. 2016a; Malgas et al. 2018; Tembo-Phiri 2019; Topp et al. 2021). By including TEK, it can possibly prevent the further exclusion of the most marginalised members of the local communities (and their local knowledge), instead facilitating equitable ways to connect diverse cohorts of contemporary users and knowledge holders.

The persistence of wild NUS is central to issues of food justice, job creation, livelihoods, and business. Several endemic NUS in the Cape Floristic Region have started to appear in the high-end food industry, in a region where terrestrial biodiversity is already threatened by various anthropogenic activities, including urbanisation and conventional agricultural production practices. Similarly, many of the marine species harvested from the ocean, tidal, and intertidal zones are also affected by pollution, and secondary waste from those activities that threaten terrestrial environments. Regrettably, only 1% of Cape Strandveld fynbos and 2% Cape Sand fynbos remain in the natural landscape (City of Cape Town et al. 2010), although both are the naturally delimited vegetation types that support the growth and persistence of wild endemic plant populations. The persistence of NUS and other food species in the wild is therefore also threatened as human activities increasingly encroach on these natural habitats. Considering the above, we argue that the conservation and management of these valued resources are best achieved by leveraging knowledge (scientific and traditional) and policy for collective action. However, their conservation competes with other pressing social needs for housing, recreational space, and industrial development, which drive many of the threats to biodiversity.

A food system based on indigenous coastal species necessitates an ethic of ecological and social integrity amongst all actors and across the entire value chain, if it is to achieve its objectives of sustainability. Framing food systems as social–ecological systems, with TEK as a central element, creates an opportunity to foreground the synergies that do exist between local NUS users and their natural environments (Guerrero Lara et al. 2019). The knowledge of local NUS users about ecosystem goods and services has been shown to inform wild harvesting and agricultural production of some indigenous crop species in the Cape Floristic Regions, such as rooibos (Malgas et al. 2018). This highlights the role that TEK can play for the conservation of scarce natural and agricultural resources in a biodiversity hotspot, where indigenous food production is only one of many land-use demands.

Despite growing recognition of the value of TEK in advancing indigenous food systems, there are also knowledge gaps that hinder their establishment. A lack of knowledge on food harvesting, processing, preparation, and nutritional value, for instance, limits the diversity of foods available to achieve food security (Akinola et al. 2020). This can leave coastal communities vulnerable to exploitation, exclusion within the food system, and the commodification of the foods. It might also limit market development for other alternative user groups such as consumers further down the value chain. In local knowledge systems, knowledge gaps around food systems are attributed to disruptions in generational knowledge transfer, which is one of the most important ways through which indigenous knowledge systems are retained (Aswani et al. 2018). Conversely in conventional scientific knowledge systems, knowledge gaps are attributed to the historical exclusion of TEK from scientific endeavours, the strong research focus on commercially important food commodities (to the exclusion of indigenous crops) and, as a result, a lack of knowledge about the ecological and agronomic parameters for wild harvesting and production. These knowledge gaps are best addressed in ways that complement these different knowledge systems, in that synergies are likely to lead to sustainability outcomes better than what each knowledge system could contribute on its own (Tengö et al. 2014). A sustainable and equitable indigenous food system is essentially a social justice issue, and as such has much to gain from synergic knowledge co-production amongst the diverse NUS users in the Western Cape foodscape.

With coastal wild foods still largely unknown by the average citizen, visual cooking demonstrations and nutrition education campaigns that develop consumer empowerment would be necessary to make these foods relatable, while laying the basic foundations of how they can be utilised at home (Lindow 2017; Tembo-Phiri 2019). Considering the many cultures and communities in South Africa, coastal wild food preparation would need to acknowledge and cater to these differences to make them more appealing to diverse consumers. With about 49.2% of South Africans earning less than 1,200ZAR/month (100USD), it is imperative that coastal wild foods do not remain in the niche market, but rather become available and affordable to all, especially resource-poor communities. Nevertheless, it is also important to consider and address power dynamics and inequities before further developing the NUS market in the Cape Floristic Region, so that it does not adversely affect local communities who previously relied on these foods or relevant TEK holders. Inclusive policy measures will be critical in ensuring the equitable development of this NUS market to create a more sustainable and healthy food system. However, as the T-Lab outlined, this is not a simple task given the historical erosion of knowledge and the lack of trust from years of oppression of marginalised groups.

A complicated role for food policy

Although coastal wild foods may help to mitigate food insecurity by providing access to highly nutritious food, the foraging of indigenous coastal edible greens is often constrained by socio-economic biases, historical legacies, and incoherent policies (Davenport et al. 2011; Shackleton et al. 2017). This perception was reinforced through the discussions during the T-Lab. While policy coherence refers to the coordination of policies across sectors to support food security, the lack of policy coherence might contribute to the ineffectiveness of food security initiatives (Brooks 2014). Little is known about the impact of policy on foraging for indigenous food plants in South Africa, but there is a clear mismatch in existing policy surrounding fisheries.

For example, the western South African coastline is one of the most productive large-scale marine ecosystems on the planet (Blanke et al. 2009), which is rich in marine and other resources, contributing significantly to national economic development (WWF 2011). In addition, the fishing industry provides about 60,000 tonnes of seafood each year and employs both large-scale and informal sector workers. Yet, access to fishing rights and coastal resources remains a political challenge, and it is for this reason that small-scale fishing challenged the rights allocation in 2004 with the class litigation of “Kenneth George and Others vs. the Minister of Environmental Affairs and Tourism” for their rights to livelihood and food security (Isaacs 2016b). In an out-of-court settlement, small-scale fisher representatives and fisheries officials drafted a new small-scale fisheries policy for South Africa (Isaacs 2016b). In this policy, it is enshrined that small-scale fishers’ “use of marine living resources on a full-time, part-time or seasonal basis in order to ensure food and livelihood security… also means the engagement (by men and women) in ancillary activities such as, (pre and post harvesting, including preparation of gear for harvesting purposes), net making, boat-building (beneficiation, distribution and marketing of produce), which provide additional fishery-related employment and income opportunities to these communities” (Republic of South Africa 2012: iv).

This policy seeks to secure social and economic justice for this sector, but almost ten years after the policy was released, many small-scale fishers viewed the implementation as a challenge. As a result, lack of trust between parties remains, as commercial entities still capture most of the benefits. To promote inclusivity in policy implementation, accurate information is required to create food policies that are unique to communities in terms of their food security and nutritional needs (Branch et al. 2002; Gammage and Jarre 2020). It is also critical that not only the development of the process be participatory, but that there is political will to ensure its continuous inclusivity through/during implementation. Unfortunately, the political will to ensure localisation of marine and coastal indigenous food plants is currently missing in all spheres of government—local, district, and provincial. A key conclusion from the T-Labs is that food policies should be tailored around experiences, rather than being highly centralised, and that this learning needs to be taken into the wider NUS policy space to ensure localisation and sustainability of the edible species.

As much as synergies were sought, the workshop also pointed to the tensions between urgent social needs and constrained environmental limits. For example, the implications of foraging indigenous species for a growing market may not be viable before these indigenous edibles are cultivated due to the sustainability implications of foraging for the protected fauna and flora in the fynbos landscape and surrounding coast. On the other hand, the work towards developing an equitable and just food system may also catalyse a social reconnection amongst actors and between society and the environment. Navigating these various trade-offs is a complicated role for policy.

Lessons learnt through the T-Lab

In essence, the T-Lab sought to create an opportunity to enter dialogue around a contested topic with a range of stakeholders having different experiences and perspectives. Through this process, ideas about how to engage in this contested space emerged. A key lesson learnt from the T-Lab is that a facilitated dialogue can be an effective method to help identify multiple solutions and support change strategies, but also that in itself this is only part of the process (Drimie et al. 2018). Building trust and commitment is necessary to take these ideas into reality where they can be tested and adapted. The T-Lab process was effective in framing the challenge and building some trust and understanding among stakeholders that could sustain action, but far more is required to strengthen processes to address more effectively the challenge. The T-Lab successfully enabled the beginning of a process in which stakeholders from different sectors and backgrounds (and many with different perspectives) could begin to build a shared understanding of the challenge and begin to work together to creatively co-design novel and testable innovations.

Overall, the T-Lab proved to be an appropriate method for approaching this contested topic, but it is an ongoing intervention that would require continuous support and mobilisation. This can be difficult to achieve through academic research funding. Two different sets of funding have been used to host relevant T-Labs in the Western Cape thus far, which has allowed for a longer-term process to be established and social capital to be built between the researchers and participants. As funding is never guaranteed, the investment of time, money, and effort could dissipate over the long term if alternative mechanisms are not found. A move towards eventually establishing a community of practice that can be self-sustaining would be a significant longer-term achievement, and there should be an emphasis on this as discussions proceed. It seems that inroads are currently being made towards the establishment of such a community of practice under the auspices of the NGO Local Wild and in collaboration with the Sustainability Institute at Stellenbosch University. It is nevertheless important to be open and honest with participants from the beginning about this to manage expectations. However, it also speaks to the need for larger reconfigurations of the academic funding sphere, as it moves towards emphasising transdisciplinary work and knowledge co-production. Funding mechanisms need to recognise that such processes take time and are emergent, that trust is not earned overnight, and that often the outcomes of such processes are often not what was originally intended, but may be more important in the long run (Scholz 2017).

Similarly, building the skill sets of facilitators who are able to design and implement such transformative spaces that can hold conflict, whilst allowing participants to feel safe enough to articulate their viewpoints, is an important capacity gap (Marshall et al. 2018). As reflected by Pereira et al. (2020b) on the different capacities needed for transformative space research, it is important to develop these kinds of skills and document the relevant processes so that lessons can be learnt and shared in other contexts. Sharing such insights and reflections with the broader sustainability science community which is invested in deep transdisciplinary research can hopefully start to foster a space where knowledge can be shared effectively, so that future attempts at such endeavours will be able to build on what has been implemented and succeeded before.

One of the limitations of a T-Lab as a process is that it can be very difficult to record the proceedings and discussions for later analysis. Taking notes during such interactive processes on a tablet or notebook was seen as a distraction to participants, as “being observed” can hinder people’s ability to speak freely. The pace of discussions might also cause the observer to miss important aspects of the event. Despite these limitations, there was a considerable body of information and knowledge captured, from which to draw for the analysis presented in this paper. A potentially effective way to capture some of the proceedings would be to undertake some semi-quantitative ranking process with the participants around the various threats and interventions. The key is to ensure that this does not detract from the rich narratives and experiences that can unfold during the course of the two days. Overall, this is an ongoing case of learning by doing of how to capture important information, whilst allowing the process to unfold as the main intervention. Further reflections on how similar processes have been able to navigate this difficulty would be a welcome addition to the growing transdisciplinary literature, especially the literature on how to undertake transdisciplinary research with care (Sellberg et al. 2021).

The process of transdisciplinary research needs to also judiciously confront upfront the intersectionalities of the group (e.g. in terms of race, class, gender, rank, language, education, wealth) (Takeuchi et al. 2020). A possible way would be to bring together people from different backgrounds with different agendas before the workshop, but it would need time and resources to get the group to agree to common values and vision and ensure that knowledge sharing would not be appropriated. Continued dialogue between the diverse participants may expedite this connection over the long term, but it is also important to note that not each T-Lab participant might be feeling satisfied with the processes, especially around challenging topics. Continued dialogue might facilitate smoothing out some of the lingering conflicts. As researchers, we need to acknowledge that challenging topics require time, particularly when there are diverse perspectives. Finally, when co-designing the process, it is vital that the knowledge is co-owned, and that the outputs are also co-produced with those who are interested.

Conclusion

The T-Lab on coastal wild foods reported in this study brought a diverse group of stakeholders together to engage deeply on how a more sustainable, healthy, and equitable food system centred on local NUS might emerge. As an emerging tool of knowledge co-production around food system transformation, this T-Lab opened up not only surface concerns, but deeply embedded issues around land, race, history and culture that need to be grappled with if a better food system is to emerge in South Africa. T-Labs continue to be an emerging concept, and this application within the Western Cape is a contribution to this growing knowledge base in the global South about how to initiate spaces of co-production aimed at equitable sustainability transformations. This T-Lab, the third conducted in the Cape Town area, aimed to connect a diverse range of stakeholders through dialogue and guided reflection within the wild coastal food space, strengthening connections across sectors and fields. By convening a group of people who recognise the potential of coastal wild foods for contributing to the Western Cape food system, the T-Lab was able to build relationships between a key set of stakeholders in anticipation of future opportunities to disrupt or change the dominant system. This emerged through a process that was able to foster a deep awareness of the ethical context, in which the project is situated.

It was evident that the T-Lab provided a platform where participants could learn and share with one another, while delving into the threats and opportunities related to coastal wild foods. It created a space for relationships to be formed and strengthened, collaboration to be envisioned, and a set of principles and action steps to be discussed by a group that can often be marginalised from core decision-making processes. A critical insight is that whilst developing a local food system around coastal NUS could have far-reaching health and sustainability benefits, the equity implications of whose knowledge is being leveraged and who has control over the transition are critical areas that food policy should tackle. This is vital for similar work undertaken in other parts of the world to appreciate (especially where the inequities might not be as stark as they are in South Africa), but are nevertheless important to consider. It is also critical for policymakers to take note of these potential pitfalls in innovations for food system transformation, and for them to become embedded in such processes with the intention of gaining a deeper understanding of the complexity confronting such policy environments.

Acknowledgements

We would like to extend our sincere thanks to all the participants of the coastal wild foods T-Lab for all their input and dedication during the process. We specially thank Jade de Waal from Soute, who gave her venue for free, and Loubie Rusch for her inspiration and catering. We could not have done this study without them. We also thank Natalie McClean for all her help with the references.

Funding

Open access funding provided by Stockholm University. The workshop was funded through the Global Challenges Research Fund grant provided by Research England. The researchers were funded in part by the Wellcome Trust through the Sustainable and Healthy Food Systems (SHEFS) Project Grant number-205200/Z/16/Z. It was also in part funded by the National Research Foundation of South Africa (Grant number 115300).

Fig. 1 Snoek prepared by workshop participant, Sarah Niemand, during the Food Jam (Photo: Laura Pereira)

Fig. 2 Map of the Western Cape and the extent of the fynbos biome

Fig. 3 Soutslaai under trial propagation at Stellenbosch University’s Agronomy Department (Photo: Chimwemwe Tembo)

Fig. 4 Chikanda cubes at the T-lab: a Zambian wild food delicacy. Note: chikanda is a soft textured meat-like product prepared in a 1:1 ratio of finely ground orchid tubers and peanut flour. Peanut flour is added to boiling water containing salt, baking soda, and occasion-ally chilli powder. Chikanda powder is then added to thicken and bind the mixture giving the product a gelatinous texture, similar to that of polony (Kaputo 1996) (Photo: Carolyn Cramer)

Table 1 Participants in the T-Lab by primary domain of expertise

Category of stakeholder	Code	Affiliation	
Researchers and academics	RES1	Administrator, Stellenbosch University	
	RES2	Researcher, Southern Africa Food Lab	
	RES3	Researcher, Stellenbosch University	
	RES4	Lecturer in Agronomy, Stellenbosch University	
	RES5	Researcher, University of the Western Cape	
	RES6	Administrator, Stellenbosch University	
	RES7	Researcher, City University London	
	RES8	Professor in Land Governance, University of the Western Cape	
	RES9	Lecturer in Human Geography, University of Cape Town	
	RES10	Lecturer in Ecology and Conservation, Stellenbosch University	
	RES11	Population Scientist, Stellenbosch University	
	RES12	Professor in Agriculture Economics, Stellenbosch University	
NGO coastal actors	NGO1	Coastal actor, Masifundise Development Trust	
	NGO2	Coastal actor, Masifundise Development Trust	
	NGO3	Coastal actor, Abalobi	
	NGO4	Coastal actor, Abalobi	
	NGO5	Coastal actor, Solomon Square	
	NGO6	Coastal actor, Private	
	NGO7	Coastal actor, Masifundise Development Trust	
	NGO8	Coastal actor, Buffeljagsbaai	
	NGO9	Coastal actor, Abalobi	
	NGO10	Youth advocate, Slow Food Youth Network	
	NGO11	Coastal actor, Abalobi	
	NGO12	Indigenous food, Making KOS	
Indigenous knowledge holder	IND1	Indigenous knowledge holder, First People Indigenous	
Chefs/bartenders/hoteliers	CHE1	Chef, Skinny Legs Café	
	CHE2	Chef, Private chef	
	CHE3	Chef, The Black Sheep	
	CHE4	Bartender, Botanical Bar	
	CHE5	Hotelier, The Vineyard Hotel	
Farmers	FAR1	Farmer, Meuse farm	
	FAR2	Farmer, Umthunzi Farming Community	
	FAR3	Farmer, Grounded	
	FAR4	Farmer, UbuhleBendalo Food Gardens	
	FAR5	Farmer, Khaya Garden	
	FAR6	Founder, Veld and Sea	
Retailers	RET2	Marketer, Harvest of Hope	
	RET1	Retailer, Wild Peacock	
Government officers	GOV1	Public officer, Cape Nature	
	GOV2	Public officer, Department of Premier, Western Cape Government	

Table 2 Neglected and underutilised species found along the coastal zones of the Cape Floristic Region

Plant habitat	Scientific name	Common name	Use	
Terrestrial plant	Agathosma betulina (Berg.) Pillans	Buchu	Medicinal herb: tea, treatment of internal ailments	
Terrestrial plant	Aloe ferox Mill. and Aloe vera (L.) Burm.f.	Aloe	Medicinal: topical treatment, laxative	
Terrestrial plant	Artemisia affra Jacq. ex Willd.	African wormwood	Aromatic and medicinal herb: respiratory treat­ment, topical treatment	
Terrestrial plant	Carpobrotus edulis (L.) N.E. Br, C. acinaciformis (L.) L. Bolus, and C. quadrifidus (L.) L. Bolus	Sourfig	Nutritional fruit snack and medicinal: astringent and mildly antiseptic	
Terrestrial plant	Coleonema alba (Thunb.) Bartl. and J.C. Wendl. & C. pulchellum I.Williams	Buchu	Medicinal: insect repellent	
Terrestrial plant	Dasispermum suffriticosum (P.J.Bergius) B.L.Burtt	Dune celery	Aromatic herb	
Terrestrial plant	Eriocephalus africanus L.	Wild rosemary	Aromatic herb: fragrance and respiratory treat­ment	
Terrestrial plant	Gethyllis spp. L.	Kukumakranka	Aromatic and medicinal fruit: topical treatment of skin ailments	
Terrestrial plant	Helichrysum pedunculatum Hilliard & B.L.Burtt and H. italicum (Roth) G. Don fil.	Imphepho	Aromatic medicinal herb: cosmetic and internal treatment	
Terrestrial plant	Lippia spp. L.	Lippia	Aromatic medicinal and culinary herb: repellent	
Terrestrial plant	Lycium ferocissimum Miers	Slangbessie	Fruit snack, topical and poor appetite treatment	
Terrestrial plant	Mentha longifolia (L.) Huds.	Wild mint	Aromatic culinary herb: respiratory and topical treatment	
Terrestrial plant	Mesembryanthemum crystallinum L.	Soutslaai	Vegetable and medicinal: oral treatment	
Terrestrial plant	Oxalis pes-caprae L.	Wild sorrel	Vegetable, carbohydrate source	
Terrestrial plant	Pelargonium citronellum J.J.A. van der Walt, P. graveolens L’Hér., P. capitatum (L.f.) L’Hér. ex Aiton, P. betulinum (L.) L’Herit., or P. tomentosum Jacq.	Pelargonium	Aromatic medicinal herb: fragrance and repellent	
Terrestrial plant	Portulaca oleracea L.	Pigweed	Vegetable, water source	
Terrestrial plant	Portulacaria afra Jacq	Spekboom	Vegetable, water source	
Terrestrial plant	Quaqua mammilaris (L.) Bruyns	Aroena	Vegetable, water source	
Terrestrial plant	Salicornia meyeriana Moss and S. capensis (Moss) A. J. Scott	Samphire	Vegetable, carbohydrate source	
Terrestrial plant	Salvia africana-lutea L. and S. african-cearulea L.	Wild sage	Aromatic culinary herb	
Terrestrial plant	Sphalmanthus canaliculatus (Haw.) N.E. Br.	Kruipvygie	Vegetable	
Terrestrial plant	Tetragonia decumbens Mill.	Dune spinach	Vegetable	
Terrestrial plant	Trachyandra ciliata (L.f.) Kunth, T. falcata (L.f.) Kunth and T. hirsuta (Thunb.) Kunth	Veldkool	Vegetable	
Terrestrial plant	Trachyandra divaricata (Jacq.) Kunth	Sandkool	Vegetable	
Terrestrial plant	Tulbaghia violacea Harv.	Wild garlic	Aromatic herb	
Marine plant	Ecklonia maxima (Osbeck) Papenfuss	Kelp	Seaweed	
Marine plant	Laminaria pallida Greville ex J, Agardh	Kelp	Seaweed	
Marine plant	Porphyra capensis Kützing	Laver	Seaweed	
Marine plant	Ulva fasciata Delile and Ulva capensis J.E. Areschoug, Ulva rigida C. Agardh	Sea lettuce	Seaweed	
Marine plant	Gracilaria gracilis (Stackhouse) M.Steentoft, L.M. Irvine & W.F.Farnham	Agar weed	Seaweed	
Marine fish	Thyrsites atun Euphrasén	Snoek	Protein source	
Marine fish	Pachymetopon blochii Valenciennes	Cape bream	Protein source	
Marine fish	Pecten sulcicostatus Sowerby II	Scallops	Protein source	
Marine fish	Homarinus capensis Herbst	Cape lobster	Protein source	
Marine fish	Jasus lalandii H. Milne-Edwards	West Coast Rock lobster	Protein source	
Marine fish	Engraulis encrasicolus Linnaeus	Anchovies	Protein source	
Marine fish	Sardinops sagax Jenyns	Sardines	Protein source	

1 Affiliation is not disclosed for confidentiality.

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==== Refs
Abson DJ Fischer J Leventon J Leverage points for sustainability transformation Ambio 2017 46 30 39 10.1007/s13280-016-0800-y 27344324
Agarie S Kawaguchi A Kodera A Potential of the common ice plant, Mesembryanthemum crystallinum as a new high-functional food as evaluated by polyol accumulation Plant Prod Sci 2009 12 37 46 10.1626/pps.12.37
Agyemang C Boatemaa S Agyemang G de-Graft Aikins A Obesity in Sub-Saharan Africa Metab Syndr 2015 10.1007/978-3-319-12125-3
Akinola R Pereira LM Mabhaudhi T A review of indigenous food crops in Africa and the implications for more sustainable and healthy food systems Sustainability 2020 10.3390/SU12083493
Aliber M Cousins B Livelihoods after land reform in South Africa J Agrar Change 2013 13 140 165
Argumedo A Song Y Khoury CK Hunter D Dempewolf H Guarino L de Haan S Biocultural diversity for food system transformation under global environmental change Front Sustain Food Syst 2021 5 10.3389/fsufs.2021.685299 685299
Aswani S Lemahieu A Sauer WHH Global trends of local ecological knowledge and future implications PLoS ONE 2018 13 10.1371/journal.pone.0195440 e0195440 29621311
Bartels D Sunkar R Drought and salt tolerance in plants Crit Rev Plant Sci 2005 24 23 58 10.1080/07352680590910410
Bennett E Solan M Biggs R Bright spots: seeds of a good anthropocene Front Ecol Environ 2016 14 8 441 448
Biodiversity International Mainstreaming agrobiodiversity in sustainable food systems: scientific foundations for an agrobio-diversity index Biodiversity International, Rome 2017
Blanke B Penven P Roy C Ocean variability over the Agulhas Bank and its dynamical connection with the southern Benguela upwelling system J Geophys Res Oceans 2009 114 1 15 10.1029/2009JC005358
Bohnert HJ Cushman JC The ice plant cometh: lessons in abiotic stress tolerance J Plant Growth Regul 2000 19 334 346 10.1007/s003440000033
Botha MS Cowling RM Esler KJ Return rates from plant foraging on the Cape south coast: understanding early human economies Quatern Sci Rev 2020 235 10.1016/J.QUASCIREV.2019.106129 106129
Bouftira I Chedly A Souad S Antioxidant and antibacterial properties of Mesembryanthemum crystallinum and Carpobrotus edulis extracts Adv Chem Eng Sci 2012 02 359 365 10.4236/aces.2012.23042
Branch GM Hauck M Siqwana-Ndulo N Dye AH Defining fishers in the South African context: subsistence, artisanal and small-scale commercial sectors South Afr J Mar Sci 2002 24 475 487
Brooks J Policy coherence and food security: the effects of OECD countries’ agricultural policies Food Policy 2014 44 88 94 10.1016/j.foodpol.2013.10.006
Brownell K Horgen KB Food fight McGraw Hill Professional New York 2003
Bvenura C Afolayan AJ The role of wild vegetables in household food security in South Africa: a review Food Res Int 2015 76 1001 1011 10.1016/j.foodres.2015.06.013
Cecílio Filho AB Bianco MS Tardivo CF Pugina GCM Agronomic viability of New Zealand spinach and kale inter-cropping An Acad Bras Ciênc 2017 89 2975 2986 10.1590/0001-3765201720160906 28876391
Chakona G Shackleton CM Food insecurity in South Africa: to what extent can social grants and consumption of wild foods eradicate hunger? World Dev Perspect 2019 13 87 94 10.1016/j.wdp.2019.02.001
Charli-Joseph L Siqueiros-Garcia JM Eakin H Promoting agency for social–ecological transformation: a transformation-lab in the Xochimilco social–ecological system Ecol Soc 2018 10.5751/ES-10214-230246
City of Cape Town SANParks, Cape Nature, SANBI, Cape Town’s unique biodiversity: vegetation City of Cape Town Cape Town Accessed 13 May 2022 Available at: https://resource.capetown.gov.za/documentcentre/Documents/Graphics%20and%20educational%20material/Biodiversity_poster-CT_Unique_Biodiv_VEGETATION_2011-02.pdf
Cramer C Pereira LM Drimie S T-Lab on coastal wild foods in the Western Cape Report on T-lab held 2–3 May 2019 Food Jams, Salt River 2019
Davenport TRB Ndangalasi HJ An escalating trade in orchid tubers across Tanzania’s Southern Highlands: assessment, dynamics and conservation implications Oryx 2003 37 55 61 10.1017/S0030605303000127
Davenport NA Gambiza J Shackleton CM Use and users of municipal commonage around three small towns in the Eastern Cape, South Africa J Environ Manag 2011 92 1449 1460 10.1016/j.jenvman.2010.11.003
de Vynck JC van Wyk BE Cowling RM Indigenous edible plant use by contemporary Khoe-San descendants of South Africa’s Cape South Coast S Afr J Bot 2016a 102 60 69 10.1016/j.sajb.2015.09.002
de Vynck J Hill K Anderson R Return rate estimates for inter-tidal foraging from experiments on the south coast of South Africa: Implications for debates over the significance of early marine resource use Quatern Int 2016b 404 184 10.1016/J.QUAINT.2015.08.124
de la Fontaine S Malgas RR Plaaslike kennis oor insekplae en die bestuur daarvan deur kleinskaalse rooibosteeboere in die Sederberge, Suid-Afrika Suid-Afrikaanse Tydskrif vir Natuurwetenskap en Tegnologie 2013 32 1 10.4102/satnt.v32i1.408 A408
den Boer ACL Kok KPW Gill M Research and innovation as a catalyst for food system transformation Trends Food Sci Technol 2021 107 150 156 10.1016/J.TIFS.2020.09.021 32994668
Drimie S Hamann R Manderson AP Mlondobozi N Creating transformative spaces for dialogue and action: reflecting on the experience of the Southern Africa Food Lab Ecol Soc 2018 10.5751/ES-10177-230302
El-Darier SM Mineral nutrient content and turnover rate of Mesembryanthemum crystallinum in the north-western desert of Egypt J Arid Environ 1992 22 219 230 10.1016/S0140-1963(18)30640-2
Ely A Marin A Charli-Joseph L Structured collaboration across a transformative knowledge network—learning across disciplines, cultures and contexts? Sustainability 2020 12 2499 10.3390/su12062499
Evans J Insects as a delicacy: the value of diversity in deliciousness moMentum 2014 4 31 34
FAO/WHO Sustainable healthy diets: guiding principles 2019
Frison E Clément C The potential of diversified agroeco-logical systems to deliver healthy outcomes: making the link between agriculture, food systems and health Food Policy 2020 96 10.1016/J.FOODPOL.2020.101851 101851
Gammage LC Jarre A Using structured decision-making tools with marginalised fishers to promote system-based fisheries management approaches in South Africa Front Mar Sci 2020 10.3389/fmars.2020.00477
Garekae H Shackleton CM Foraging wild food in urban spaces: the contribution of wild foods to urban dietary diversity in South Africa Sustainability 2020 12 2 678 10.3390/su12020678
Greenberg S Agrarian reform and South Africa’s agro-food system J Peasant Stud 2015 42 957 979 10.1080/03066150.2014.993620
Greenberg S Corporate power in the agro-food system and the consumer food environment in South Africa J Peasant Stud 2017 44 467 496 10.1080/03066150.2016.1259223
Gryszkiewicz L Lykourentzou I Toivonen T Innovation labs: leveraging openness for radical innovation? J Innov Manag 2017 4 68 97 10.24840/2183-0606_004.004_0006
Guerrero Lara L Pereira LM Ravera F Jiménez-Aceituno A Flipping the Tortilla: social–ecological innovations and traditional ecological knowledge for more sustainable agri-food systems in Spain Sustainability (switzerland) 2019 10.3390/su11051222
Haider LJ van Oudenhoven F Food as a daily art: ideas for its use as a method in development practice Ecol Soc 2018 10.5751/ES-10274-230314
Hasanuzzaman M Nahar K Alam MM Potential use of halophytes to remediate saline soils Biomed Res Int 2014 2014 10.1155/2014/589341 e589341
Hebinck A Vervoort JM Hebinck P Imagining transformative futures: participatory foresight for food systems change Ecol Soc 2018 10.5751/ES-10054-230216
Hinsley A de Boer HJ Fay MF A review of the trade in orchids and its implications for conservation Bot J Linn Soc 2018 186 435 455 10.1093/botlinnean/box083
Hunter D Borelli T Beltrame DMO The potential of neglected and underutilized species for improving diets and nutrition Planta 2019 250 709 720 10.1007/s00425-019-03169-4 31025196
Igumbor EU Sanders D Puoane TR ‘“Big Food”,’ the consumer food environment, health, and the policy response in South Africa PLoS Med 2012 9 1 7 10.1371/journal.pmed.1001253
Isaacs M Small-scale fisheries governance and understanding the snoek (Thyrsites atun) supply chain in the ocean view fishing community, Western Cape, South Africa Ecol Soc 2013 18 17 10.5751/ES-05863-180417
Isaacs M The humble sardine (small pelagics): fish as food or fodder Agric Food Secur 2016a 5 1 14 10.1186/s40066-016-0073-5
Isaacs M Multi-stakeholder process of co-designing small-scale fisheries policy in South Africa Reg Environ Change 2016b 16 277 288 10.1007/s10113-015-0874-2
Jaworska G Kmiecik W Content of selected mineral compounds, nitrates III and V, and oxalates in spinach [Spinacia oleracea L.] and New Zealand spinach [Tetragonia expansa Murr.] from spring and autumn growing seasons Electron J Polish Agric Univ Ser Food Sci Technol 1999 2 1 7
Kaputo MT The role of ashes and sodium bicarbonate in a simulated meat product from chikanda tuber (Satyria siva) Food Chem 1996 55 115 119 10.1016/0308-8146(95)00073-9
Kasulo V Mwabumba L Cry M A review of edible orchids in Malawi J Hortic For 2009 1 133 139
Khoury C Bjorkman AD Dempewolf H Ramirez-Villegas J Guarino L Jarvis A Rieseberg LH Struik PC Increasing homogeneity in global food supplies and the implications for food security Proc Natl Acad Sci 2014 111 11 4001 4006 10.1073/pnas.1313490111 24591623
Kroll F Foodways of the Poor in South Africa: How poor people get food, what they eat, and how this shapes our food system Working Paper 48 PLAAS Cape Town 2017
Kushitor SB Sanuade OA Baatiema L Non-communicable disease comorbidities in KwaZulu-Natal Province, South Africa S Afr Med J 2021 111 149 158 10.7196/SAMJ.2021.V111I2.14744 33944726
Lalika MCS Mende H Urio P Domestication potential and nutrient composition of wild orchids from two southern regions in Tanzania Time J Biol Sci Techniol 2013 1 1 1 11
Lindow M Exploring resilience capacities through the art of storymaking: the case of food innovators in the Western Cape. MSc Thesis University of Stellenbosch 2017
López Cifuentes M Freyer B Sonnino R Fiala V Embedding sustainable diets into urban food strategies: a multi-actor approach Geoforum 2021 122 11 21 10.1016/J.GEOFORUM.2021.03.006
Mabhaudhi T Chibarabada TP Chimonyo VGP Main-streaming underutilized indigenous and traditional crops into food systems: a South African perspective Sustainability (switzerland) 2018 10.3390/su11010172
Mair J Hehenberger L Front-stage and backstage convening: the transition from opposition to mutualistic coexistence in organizational philanthropy Acad Manag J 2014 57 1174 1200 10.5465/amj.2012.0305
Malgas RR Comley DA Jilisen B Local ecological knowledge (LEK) on Honeybush (Cyclopia spp.) at Genadendal, Overberg, Western Cape South Afr J Bot 2018 115 296 10.1016/J.SAJB.2018.02.074
Manning J Field Guide to Fynbos Penguin Random House Johannesburg 2018
Marshall F Dolley J Priya R Transdisciplinary research as transformative space making for sustainability: enhancing propoor transformative agency in periurban contexts Ecol Soc 2018 10.5751/ES-10249-230308
May J Food security and nutrition: impure, complex and wicked Food Security SA Working Paper 2 DST-NRF Centre of Excellence in Food Security Cape Town 2017
Mbhenyane XG The contribution of ‘Indigenous Foods’ to the elimination of hidden hunger and food insecurity: an illusion or innovation? Stellenbosch University Inaugural lecture 2016
Mbhenyane XG Indigenous foods and their contribution to nutrient requirements South Afr J Clin Nutr 2017 30 3
Midgley GF Bond WJ Future of African terrestrial biodiversity and ecosystems under anthropogenic climate change Nat Clim Change 2015 5 823 829 10.1038/nclimate2753
Müller A Evans J Payne CLR Roberts R Entomophagy and power J Insects Food Feed 2016 2 2 121 136
Myers N Mittermeier RA Mittermeier CG da Fonseca GAB Kent J Biodiversity hotspots for conservation priorities Nature 2000 403 6772 853 858 10.1038/35002501 10706275
Neubauerová T Macková M Macek T Isolation of antimicrobial peptides from New Zealand spinach Tetragonia tetragonioides Sci Technol Against Microb Pathog 2011 13 17 10.1142/9789814354868_0004
Ntshanga NK Procheş S Slingsby JA Assessing the threat of land-scape transformation and habitat fragmentation in a global biodiversity hotspot Austral Ecol 2021 10.1111/AEC.13037
Nyomora AMS Distribution and abundance of the edible orchids of the southern highlands of Tanzania Tanzan J Sci 2005 31 45 54 10.4314/tjs.v31i1.18408
Okop KJ Ndayi K Tsolekile L Low intake of commonly available fruits and vegetables in socio-economically disadvantaged communities of South Africa: influence of affordability and sugary drinks intake BMC Public Health 2019 19 1 14 10.1186/S12889-019-7254-7 30606151
Olsson P Westley F McGowan K Tjörnbo O Synthesis: Agency and opportunity. Chapter 4 The evolution of social innovation building resilience through transitions Edward Elgar Cheltenham 2017
Padulosi S Thompson J Rudebjer P Fighting poverty, hunger and malnutrition with neglected and underutilized species (NUS) Bioversity International Rome 2013
Pathways Network Transformative pathways to sustainability: learning across disciplines, cultures and contexts Routledge London 2021 10.4324/9780429331930
Pereira LM Cassava bread in Nigeria: the potential of ‘orphan crop’ innovation for building more resilient food systems Int J Technol Global 2017 8 97 115 10.1504/IJTG.2017.088958
Pereira LM Calderón-Contreras R Norström AV Chefs as change-makers from the kitchen: indigenous knowledge and traditional food as sustainability innovations Glob Sustain 2019 10.1017/S2059479819000139
Pereira L Drimie S Zgambo O Biggs R Planning for change: transformation labs for an alternative food system in Cape Town South Africa Urban Transform 2020a 2 13 10.1186/s42854-020-00016-8 33569539
Pereira L Frantzeskaki N Hebinck A Transformative spaces in the making: key lessons from nine cases in the Global South Sustain Sci 2020b 15 161 178 10.1007/s11625-019-00749-x
Pereira L Olsson P Charli-Joseph L Zgambo O Oxley N Van Zwanenberg P Siqueiros-García JM Ely A Transdisciplinary methods and T-labs as transformative spaces for innovation in social-ecological systems. Chapter 4 Transformative pathways to sustainability: learning across disciplines, cultures and contexts Pathways Network Routledge London 2021 53 64
Philander L An emergent ethnomedicine: Rastafari bush doctors in the Western Cape, South Africa 2010
Popkin BM Adair LS Ng SW Global nutrition transition and the pandemic of obesity in developing countries Nutr Rev 2012 70 3 21 10.1111/j.1753-4887.2011.00456.x 22221213
Republic of South Africa Small-scale fisheries sector for South Africa Government Gazette South Africa 2012
Richardson KJ Lewis KH Krishnamurthy PK Food security outcomes under a changing climate: impacts of mitigation and adaptation on vulnerability to food insecurity Clim Change 2018 147 327 341 10.1007/s10584-018-2137-y
Rivera-Ferre MG Pereira L Karpouzoglou T A vision for transdisciplinarity in Future Earth: perspectives from young researchers J Agric Food Syst Commun Dev 2013 3 249 260 10.5304/jafscd.2013.034.028
Sartorius B Veerman LJ Manyema M Determinants of obesity and associated population attributability, South Africa: empirical evidence from a National Panel Survey, 2008–2012 PLoS ONE 2015 10 10.1371/JOURNAL.PONE.0130218 e0130218 26061419
Satgar V Cherry J Climate and food inequality: the South African Food Sovereignty Campaign response Globalizations 2020 17 2 317 337 10.1080/14747731.2019.1652467
Scholz RW The normative dimension in transdisciplinarity, transition management, and transformation sciences: new roles of science and universities in sustainable transitioning Sustainability 2017 9 991 10.3390/SU9060991
Scoones I Stirling A Abrol D Transformations to sustainability: combining structural, systemic and enabling approaches Curr Opin Environ Sustainy 2020 42 65 75 10.1016/j.cosust.2019.12.004
Sellberg MM Cockburn J Holden PB Lam DPM Towards a caring transdisciplinary research practice: navigating science, society and self Ecosyst People 2021 17 292 305 10.1080/26395916.2021.1931452
Shackleton C Shackleton S The importance of non-timber forest products in rural livelihood security and as safety nets: a review of evidence from South Africa South Afr J Sci 2004 100 658 664
Shackleton CM Hurley PT Dahlberg AC Urban foraging: a ubiquitous human practice overlooked by urban planners, policy, and research Sustainability 2017 9 1884 10.3390/SU9101884
Sharpe B Hodgson A Leicester G Three horizons: a pathways practice for transformation Ecol Soc 2016 21 10.5751/ES-08388-210247 art47
Shevyakova NI Netronina IA Aronova EE Kuznetsov VV Compartmentation of cadmium and iron in Mesembryanthemum crystallinum plants during the adaptation to cadmium stress Russian J Plant Physiol 2003 50 678 685
Singels E Potts AJ Cowling RM Foraging potential of underground storage organ plants in the southern Cape, South Africa J Hum Evol 2016 101 79 89 10.1016/j.jhevol.2016.09.008 27886812
Słupski J Achrem-Achremowicz J Lisiewska Z Korus A Effect of processing on the amino acid content of New Zealand spinach (Tetragonia tetragonioides Pall. Kuntze) Int J Food Sci Technol 2010 45 1682 1688 10.1111/j.1365-2621.2010.02315.x
Stats SA General household survey 2017 Statistics South Africa Pretoria 2018
Takeuchi MA Adams J Alley ZD Rethinking transdisciplinarity in the learning sciences: critical and emergent perspectives International society of the learning sciences (ISLS) 2020
Tembo-Phiri C Edible fynbos plants: a soil types and irrigation regime investigation on Tetragonia decumbens and Mesembryanthemum crystallinum Stellenbosch University Stellenbosch 2019
Tengö M Brondizio ES Elmqvist T Connecting diverse knowledge systems for enhanced ecosystem governance: the mul-tiple evidence base approach Ambio 2014 43 579 591 24659474
Topp EN Loos J Martín-López B Decision-making for nature’s contributions to people in the Cape Floristic Region: the role of values, rules and knowledge Sustain Sci 2021 10.1007/s11625-020-00896-6
UNESCO Success story of promoting traditional foods and safeguarding traditional foodways in Kenya 2022 Accessed 5 Feb 2022 https://f5vip11.unesco.org/en/BSP/success-story-of-promoting-traditional-foods-and-safeguarding-traditional-foodways-in-kenya-01409?Art18=01409
Valente LM Britton AW Powell MP Correlates of hyper-diversity in southern African ice plants (Aizoaceae) Bot J Linn Soc Lond 2014 174 110 129 10.1111/boj.12117
van Wyk BE Gericke N People’s plants: a guide to useful plants of Southern Africa People’s plants: a guide to useful plants of Southern Africa Briza southern Africa Pretoria 2018
van Zwanenberg P Cremaschi A Obaya M Seeking unconventional alliances and bridging innovations in spaces for transformative change: the seed sector and agricultural sustainability in Argentina Ecol Soc 2018 10.5751/ES-10033-230311
Veldman S Otieno J Andel T Efforts urged to tackle thriving illegal orchid trade in Tanzania and Zambia for chikanda production Traffic Bull 2014 26 47 50
Veldman S Gravendeel B Otieno JN High-throughput sequencing of African chikanda cake highlights conservation challenges in orchids Biodivers Conserv 2017 26 2029 2046 10.1007/S10531-017-1343-7
Veldman S Kim S-J van Andel T Trade in Zambian edible Orchids—DNA barcoding reveals the use of unexpected Orchid Taxa for Chikanda Genes 2018 9 595 10.3390/genes9120595 30513666
Visscher AM Yeo M Gomez Barreiro P Dry heat exposure increases hydrogen peroxide levels and breaks physiological seed coat-imposed dormancy in Mesembryanthemum crystallinum (Aizoaceae) seeds Environ Exp Bot 2018 155 272 280 10.1016/j.envexpbot.2018.07.009
Wheeler K Tressler DK King CG Vitamin C content of vegetables. Xii. Broccoli, Cauliflower, Endive, Cantaloup, Parsnips, New Zealand Spinach, Kohlrabi, Lettuce, and Kale1 J Food Sci 1939 4 593 604 10.1111/j.1365-2621.1939.tb17156.x
Willis J Supporting the gastronomic use of underutilised species to promote social and ecological resilience : motivations and challenges in the Cape Town area. Masters Thesis University of the Western Cape South Africa 2019
WWF Fisheries: facts and trends South Africa WWF-SA Cape Town 2011
Yousif BS Yun Liu L Nguyen TN Comparative studies in salinity tolerance between New Zealand spinach (Tetragonia tetragonioides) and chard (Beta vulgaris) to salt stress Agric J 2010 5 19 24 10.3923/aj.2010.19.24
Zgambo O Exploring food system transformation in the greater Cape Town area. MSc Thesis University of Stellenbosch 2018
