Exploring the nutritional landscape of vegan diets: challenges and considerations

Exploring the nutritional landscape of vegan diets: challenges and considerations

This Thought for Food discusses the growing interest in the adoption of plant-based dietary patterns and outlines the considerations of trade-offs such as nutritional adequacy and cost in this diet transition.

Nutritional outcomes

Undeniably, vegetables, fruits and other whole plant products contribute vital nutrients. For example, in a previous Thought for Food which reviewed Dr Ty Beal’s research, dark green leafy vegetables were one of the densest sources of priority micronutrients. Some studies have discussed the potential health benefits that are achievable from a balanced diet rich in whole plant foods. These include reduced risks of mortality from cardiovascular diseases and some types of cancer. The current intake of dietary fibre in New Zealand is lower than recommended, so including more plant-sourced foods in our diet could be beneficial.

A vegan diet is the most restrictive form of the plant-based diet due to the absence of all animal-sourced foods. Achieving nutritional adequacy from a vegan diet is not impossible due to the wide variety of plant-based options available in foods and supplements. However, this comes with challenges, particularly for individuals who have higher nutritional requirements (e.g., young children and the elderly) but are unable to consume large portions of high-fibre and satiating plant foods to obtain the nutrient adequacy.

Plant foods are not always easily digested and nutrient release is often reduced by anti-nutritional factors such as phytates. This applies for nutrients like the indispensable amino acids, zinc, iron and calcium. Furthermore, omega-3 fatty acids and vitamin B12 are limited in unfortified plant foods or are present in forms that cannot be efficiently converted by the human body. The move towards elimination of all animal-sourced foods spurred by ethical, environmental and animal welfare concerns should be balanced with considerations of nutritional outcomes. If unbalanced, and unsupported by fortification or supplementation, these diets cannot be sustainable due to increased risks of deficiencies and subsequent negative impacts on health.

Cost of vegan diets

The transition towards a vegan diet in modern times inevitably involves including novel plant-based alternatives. However, as shown by this study, processed products may be less economically viable options as compared to traditional sources such as beans, peas and legumes.

On one hand, transitioning towards increasingly plant-based diets may require the support of these foods, especially for individuals lacking knowledge on how to prepare and cook palatable dishes from traditional sources. On the other hand, the high costs of these foods can be barriers to sustaining a long-term vegan diet.

Within the context of New Zealand, this study showed that the more constrained a diet was in food groups, the higher its cost. The simulated vegan diet scenario (NZ$789 per fortnight) deviated most significantly and was 35% more expensive as compared to the current diet (NZ$584). This was followed by the flexitarian diet (NZ$728) and the healthy diet (NZ$637).  Plant-based dairy alternatives was one of the food groups contributing to the higher costs of the plant-based diets (flexitarian and vegan). Yet these products, with the exception of soy formulations may provide poorer sources of protein and indispensable amino acids. While plant-based meat analogues could contribute high protein content, they were also comparatively more expensive than traditional plant-based options, with some products containing high quantities of sodium and saturated fat.

Mean (SD) purchase price per 100g of canned legumes (plain and flavoured), canned baked beans, reconstituted dried legumes, tofu (plain and flavoured), felafels and meat analogue product categories (Reproduced from Young et al., 2023)

Additionally, an increased variety and quantity of alternatives may be required to match the nutritional density that can be provided by a smaller amount of animal-sourced foods. This means a larger expenditure could be required to make regular purchases of these foods.

One study found higher purchasing power to be one factor associated with the increased consumption of ultra-processed and novel plant-based foods such as burgers, meat substitutes, coconut-oil based vegan and nut-based cheeses. This observation can also be influenced by the number of years since vegan diet adoption – experience and personal interest could positively influence knowledge in selecting plant-based options and home-cooking methods that require minimal processing.

Adoption of vegan diets must be supported by accurate information

Documentaries and different forms of social media have the power to influence because they can engage mass audiences with the use of creative and convincing storytelling. Information must therefore be responsibly conveyed and guided by evidence-based research. Incorrect or insufficient knowledge on how to achieve a balanced vegan diet that includes both fortified foods and supplements may lead to serious nutritional and health problems. Apart from portraying the benefits associated with vegan diets, it is important that documentaries take care to display both sides of the story, so that viewers obtain a complete view and understand the implications of restricting all animal-sourced foods from the diet, especially during pregnancy, weaning, periods of growth and ageing.

Vegan dishes should be nutrient dense, and prepared in ways that enhance nutrient bioavailability so that these may be utilised fully within the body. While social media is a source of creative plant-based recipes, methods to improve the digestibility of nutrients (e.g. soaking, draining, fermenting) are rarely described. Accurate information is not always easy to find online and does require the viewer’s discretion. Reaching out to health professionals may be an accessible option, especially for older adults and families with young children. To support healthcare professionals, sufficient evidence-based information with appropriate guidelines should be readily available. Furthermore, continual professional development such as seminars and courses, led by dietitians or researchers specialising in plant-based nutrition, are valuable training opportunities. These are areas that require urgent progress.

Future research: Challenges with data availability

Assessing food composition and digestibility data allows us to understand nutrient utilisation in the body. For example, an updated and consolidated database for protein quality in human foods is necessary to support discussions on varied protein requirements across different age groups. As discussed in this Thought For Food, evaluations of protein quality have been conducted on approximately 500 foods.

Many studies have focused on isolated foods, but humans consume foods as part of a mixed diet. More data is still required to provide estimations of overall digestibility in mixed vegan meals where food components may interact with each other to either increase or decrease the extent of nutrient release.

Achieving this is a challenge due to the continuous global emergence of plant-based alternatives with varied formulations and fortification strategies. This is also compounded by difficulties in obtaining perfect matches for nutrient compositions between universal databases and country-specific diets. However, achieving shared and consistent databases is within grasp, and may be expedited with research collaborations.

Take-home message

A vegan diet is the most restrictive form of a plant-based diet and its appropriacy in certain populations needs to be carefully examined. Nutritional profiles of the vegan diet are dependent on the selection of foods, which is in turn affected by other factors, such as affordability and acceptability. Importantly, evidence-based knowledge must accompany the personal drive for switching to or maintaining an entirely plant-based diet, to achieve optimal nutritional outcomes.

This Thought for Food was written by Patricia Soh, PhD Student, with the support of Jacob Knight, summer internship student, and the SNi team.

 



Professor Warren McNabb
Warren McNabb is a Professor of Nutritional Science at the Riddet Institute; one of New Zealand’s Centres of Research Excellence (CoRE), hosted by Massey University. He leads SNi® and his research interests include digestive physiology and metabolism, nutrition for health, and sustainable nutrition.
Project Leader | W.McNabb@massey.ac.nz
Professor Warren McNabb
Warren McNabb is a Professor of Nutritional Science at the Riddet Institute; one of New Zealand’s Centres of Research Excellence (CoRE), hosted by Massey University. He leads SNi® and his research interests include digestive physiology and metabolism, nutrition for health, and sustainable nutrition.
Project Leader | W.McNabb@massey.ac.nz
Dr Nick Smith
Nick works as a mathematical modeller on the Riddet Institute SNi®. He is responsible for a wide range of SNi's work and the continued development of the SNi models like the DELTA Model®. This is a tool for investigating how global food production meets global nutritional requirements as part of a sustainable food system.
Research Officer
Dr Nick Smith
Nick works as a mathematical modeller on the Riddet Institute SNi®. He is responsible for a wide range of SNi's work and the continued development of the SNi models like the DELTA Model®. This is a tool for investigating how global food production meets global nutritional requirements as part of a sustainable food system.
Research Officer
Dr Andrew Fletcher
Andrew is a Chemical Engineer with a PhD in process control and modelling. Andrew is a Honorary Fellow at the Riddet Institute and has been involved with SNi® since the outset. He is based at the Fonterra Research and Development Centre in Palmerston North and is involved in a range of research, management and strategy roles.
Honorary Fellow
Dr Andrew Fletcher
Andrew is a Chemical Engineer with a PhD in process control and modelling. Andrew is a Honorary Fellow at the Riddet Institute and has been involved with SNi® since the outset. He is based at the Fonterra Research and Development Centre in Palmerston North and is involved in a range of research, management and strategy roles.
Honorary Fellow
Professor Jeremy Hill
Professor Jeremy Hill has played a major role in developing SNi®. He has also been involved in developing strategic partnerships between Fonterra and the Riddet Institute. For example, the establishment of three Professorial Chairs in Food Material Science, Nutrition, and Consumer and Sensory Science. Jeremy is the Chief Science and Technology Officer at Fonterra.
Adjunct Professor
Professor Jeremy Hill
Professor Jeremy Hill has played a major role in developing SNi®. He has also been involved in developing strategic partnerships between Fonterra and the Riddet Institute. For example, the establishment of three Professorial Chairs in Food Material Science, Nutrition, and Consumer and Sensory Science. Jeremy is the Chief Science and Technology Officer at Fonterra.
Adjunct Professor
Dr Mahya Tavan
Mahya is a postdoctoral research fellow working on the development of the iOTA model. iOTA is a dietary optimisation tool for designing sustainable diets that are nutritious, acceptable and affordable. Prior to joining SNi®, Mahya held a research role at the University of Melbourne, Australia where she carried out various research projects on sustainable food production, resource use efficiency and biofortification of fresh food.
Postdoctoral Research Fellow
Dr Mahya Tavan
Mahya is a postdoctoral research fellow working on the development of the iOTA model. iOTA is a dietary optimisation tool for designing sustainable diets that are nutritious, acceptable and affordable. Prior to joining SNi®, Mahya held a research role at the University of Melbourne, Australia where she carried out various research projects on sustainable food production, resource use efficiency and biofortification of fresh food.
Postdoctoral Research Fellow
Raquel Lozano
Raquel is a postdoctoral research fellow creating models for national food systems. Her PhD research focused on helping design horticultural packaging systems to minimise the environmental impact. Raquel was awarded the International Society of Horticultural Sciences Young Minds Award in 2023, and is keen to use mathematical modelling to provide holistic information to decision-makers in the area of sustainable nutrition.
Postdoctoral Research Fellow
Raquel Lozano
Raquel is a Postdoctoral Research Fellow creating models for national food systems. Her PhD research focused on helping design horticultural packaging systems to minimise the environmental impact. Raquel was awarded the International Society of Horticultural Sciences Young Minds Award in 2023, and is keen to use mathematical modelling to provide holistic information to decision-makers in the area of sustainable nutrition.
Postdoctoral Research Fellow
Patricia Soh
Prior to her current PhD, Patricia attained a Master of Science in Human Nutrition at Massey University, Albany. The current focus of her PhD is investigating nutritional concerns within vegan diets.
PhD Student
Patricia Soh
Prior to her current PhD, Patricia attained a Master of Science in Human Nutrition at Massey University, Albany. The current focus of her PhD is investigating nutritional concerns within vegan diets.
PhD Student
Ejovi Abafe
Prior to his current PhD, Ejovi obtained a Master’s and a Bachelor’s degree in Agricultural Economics from the University of South Africa (UNISA) and Delta State University, Nigeria. The current focus of his PhD at the Riddet Institute is Global land use for the delivery of nutrition.
PhD Student
Ejovi Abafe
Prior to his current PhD, Ejovi obtained a Master’s and a Bachelor’s degree in Agricultural Economics from the University of South Africa (UNISA) and Delta State University, Nigeria. The current focus of his PhD at the Riddet Institute is Global land use for the delivery of nutrition.
PhD Student
Justine Coomson
Prior to her current PhD, Justine obtained a Masters degree in Population, Family and Reproductive Health and a Bachelor's degree in Dietetics from the University of Ghana. Justine has worked as a research assistant and a clinical dietician in Ghana before coming to New Zealand. The current focus on her PhD is the impact of biofortification and supplementation to diets.
PhD Student
Justine Coomson
Prior to her current PhD, Justine obtained a Masters degree in Population, Family and Reproductive Health and a Bachelor's degree in Dietetics from the University of Ghana. Justine has worked as a research assistant and a clinical dietician in Ghana before coming to New Zealand. The current focus on her PhD is the impact of biofortification and supplementation to diets.
PhD Student
Hannah Ramsay
Hannah is the Project Manager for SNi®. She started her career in the Riddet Institute when she first came to New Zealand and has since done project and event work across various educational institutes. The opportunity to return to Project Management at the Riddet Institute was very welcome, especially given the fascinating research and mahi conducted as part of SNi®.
Project Manager | H.Ramsay@massey.ac.nz
Hannah Ramsay
Hannah is the Project Manager for SNi®. She started her career in the Riddet Institute when she first came to New Zealand and has since done project and event work across various educational institutes. The opportunity to return to Project Management at the Riddet Institute was very welcome, especially given the fascinating research and mahi conducted as part of SNi®.
Project Manager | H.Ramsay@massey.ac.nz
Dr Amelia Barker
Amelia is a Communications Officer at the Riddet Institute. She has many years experience in digital media communications at various organisations. Amelia is passionate about research and enjoys promoting the fantastic mahi (work) that SNi® does.
Communications Officer
Amelia Barker
Amelia is a Communications Officer at the Riddet Institute. She has many years experience in digital media communications at various organisations. Amelia is passionate about research and enjoys promoting the fantastic mahi (work) that SNi® does.
Communications Officer
Rangimarie Hunia
Rangimarie Hunia was appointed an alternate director of Te Ohu Kaimoana at the beginning of 2015 before being appointed a full director in November 2015, and Chair in July 2019. The first wahine (woman) Chair in the history of Te Ohu Kaimoana. In 2017, she was appointed a Chair of Te Pūtea Whakatupu Trust. In 2016, she was appointed Chief Executive of Ngāti Whātua Ōrakei Whai Maia. Whai Maia is responsible for the well-being of its 5,000 tribal members and focuses on education, health, employment and environmental areas. She played an active role as a member of the Iwi Working Group that was established to facilitate understanding and iwi decision making in response to the 11-year Review of Māori Fisheries Settlement entities. Rangimarie is also a member of Global Women and was a finalist in the Westpac Women of Influence Awards 2014.
Ngāti Whātua Chair of the SNi® International Advisory Group Chief Executive of Ngāti Whātua Ōrakei Whai Maia
Rangimarie Hunia
Rangimarie Hunia was appointed an alternate director of Te Ohu Kaimoana at the beginning of 2015 before being appointed a full director in November 2015, and Chair in July 2019. The first wahine (woman) Chair in the history of Te Ohu Kaimoana. In 2017, she was appointed a Chair of Te Pūtea Whakatupu Trust. In 2016, she was appointed Chief Executive of Ngāti Whātua Ōrakei Whai Maia. Whai Maia is responsible for the well-being of its 5,000 tribal members and focuses on education, health, employment and environmental areas. She played an active role as a member of the Iwi Working Group that was established to facilitate understanding and iwi decision making in response to the 11-year Review of Māori Fisheries Settlement entities. Rangimarie is also a member of Global Women and was a finalist in the Westpac Women of Influence Awards 2014.
Ngāti Whātua Chair of SNi® International Advisory Group Chief Executive of Ngāti Whātua Ōrakei Whai Maia
Jeroen Dijkman
Dr. Jeroen Dijkman is the founding head of the Nestlé Institute of Agricultural Sciences at Nestlé Research. The Institute aims to translate novel agricultural science into concrete applications and to identify and develop the most promising regenerative agriculture technologies. Headquartered in Lausanne, Switzerland, the organization has a decentralized structure and incorporates Nestlé’s existing plant sciences research facilities in France, as well as numerous research and reference farms around the world. The Institute has three focus areas: plant sciences, dairy-livestock sciences and agricultural system sciences. Jeroen has worked for over 30 years, in all major regions of the world, with bi- and multi-lateral donors, i-NGOs, international and national research centres, the World Bank, UN agencies and the private sector on finding ways to use research and innovation to transition agri-food systems towards more productive but also more sustainable and socially inclusive pathways. In his last two assignments prior to taking up his current position, Jeroen combined the roles of Director (International) of the New Zealand Agricultural Greenhouse Gas Research Centre and the Senior Technical Adviser of the UN Environment, Climate and Clean Air Coalition agriculture initiative. Subsequently, he was the Managing Director of the Animal Sciences Group, Wageningen University and Research. The Animal Sciences Group consists of the Department of Animal Sciences of Wageningen University and three Wageningen Research institutes: Wageningen Bio-veterinary Research, Wageningen Livestock Research and Wageningen Marine Research.
Head of Nestlé Institute of Agricultural Sciences
Jeroen Dijkman
Dr. Jeroen Dijkman is the founding head of the Nestlé Institute of Agricultural Sciences at Nestlé Research. The Institute aims to translate novel agricultural science into concrete applications and to identify and develop the most promising regenerative agriculture technologies. Headquartered in Lausanne, Switzerland, the organization has a decentralized structure and incorporates Nestlé’s existing plant sciences research facilities in France, as well as numerous research and reference farms around the world. The Institute has three focus areas: plant sciences, dairy-livestock sciences and agricultural system sciences. Jeroen has worked for over 30 years, in all major regions of the world, with bi- and multi-lateral donors, i-NGOs, international and national research centres, the World Bank, UN agencies and the private sector on finding ways to use research and innovation to transition agri-food systems towards more productive but also more sustainable and socially inclusive pathways. In his last two assignments prior to taking up his current position, Jeroen combined the roles of Director (International) of the New Zealand Agricultural Greenhouse Gas Research Centre and the Senior Technical Adviser of the UN Environment, Climate and Clean Air Coalition agriculture initiative. Subsequently, he was the Managing Director of the Animal Sciences Group, Wageningen University and Research. The Animal Sciences Group consists of the Department of Animal Sciences of Wageningen University and three Wageningen Research institutes: Wageningen Bio-veterinary Research, Wageningen Livestock Research and Wageningen Marine Research.
Head of Nestlé Institute of Agricultural Sciences
Berry Marttin
Berry Marttin was born and raised in Brazil. Over the course of his career at Rabobank, he gained extensive experience as an international banker in both wholesale and retail banking, working in various senior executive positions in Australia, Indonesia, Hong Kong, Curacao and Brazil. Mr Marttin moved to the Netherlands in 2004 to become Chairman of the Board of Directors of Rabobank Amsterdam. In 2009, he joined the Managing Board with special focus on Rabobank’s international Wholesale and Rural banking activities and further responsibilities including Leasing (DLL), Rabo Carbon Bank and RaboResearch. His principal other activities outside Rabobank include serving as President of the EACB (European Association of Co-operative Banks) and Member of the Board of Neumann Foundation. Moreover, Mr Marttin serves as the first Chairman of the Global Steering Committee of the Food Action Alliance, where World Economic Forum together with IFAD, WBCSD, CIAT, AfDB and Rabobank and over 20 global leaders unite to deploy large scale action through game changing initiatives for food systems transformation. In 2021, he was invited to join the UN Food Systems Summit Champions network, a network encompassing leadership from a broad range of constituencies, in all parts of the world, who are championing food systems and food systems transformation.
Former Member of the Managing Board Rabobank Group
Berry Marttin
Berry Marttin was born and raised in Brazil. Over the course of his career at Rabobank, he has gained extensive experience as an international banker in both wholesale and retail banking, working in various senior executive positions in Australia, Indonesia, Hong Kong, Curacao and Brazil. Mr Marttin moved to the Netherlands in 2004 to become Chairman of the Board of Directors of Rabobank Amsterdam. In 2009, he joined the Managing Board with special focus on Rabobank’s international Wholesale and Rural banking activities and further responsibilities including Leasing (DLL), Rabo Carbon Bank and RaboResearch. His principal other activities outside Rabobank include serving as President of the EACB (European Association of Co-operative Banks) and Member of the Board of Neumann Foundation. Moreover, Mr Marttin serves as the first Chairman of the Global Steering Committee of the Food Action Alliance, where World Economic Forum together with IFAD, WBCSD, CIAT, AfDB and Rabobank and over 20 global leaders unite to deploy large scale action through game changing initiatives for food systems transformation. In 2021, he was invited to join the UN Food Systems Summit Champions network, a network encompassing leadership from a broad range of constituencies, in all parts of the world, who are championing food systems and food systems transformation.
Member of the Managing Board Rabobank Group
Dr Jason Clay
Jason Clay is the Senior Vice President for Markets and Executive Director of the Markets Institute at WWF, which was created to identify and address emerging global issues, trends, and tools impacting conservation in more timely, cost-effective, and scalable ways. His career has ranged from working on a family farm and for the US Department of Agriculture. He taught at Harvard and Yale and spent more than 35 years with human rights and environmental NGOs. In 1988, Clay founded Rainforest Marketing, set up a trading company within an NGO, helped Indigenous people and local communities access global markets, and launched Ben & Jerry’s Rainforest Crunch, plus more than 200 other products with sales of $100 million. From 1999 to 2003, he co-directed a WWF, the World Bank, UN FAO, and NACA consortium to identify the most significant environmental and social impacts of shrimp aquaculture, as well as practices to reduce them. From 2004 to 2012, he convened multistakeholder roundtables to create performance-based standards for commodities including salmon, soy, sugarcane, cotton, and beef. He developed WWF’s Market Transformation program in 2006 to work on agriculture, aquaculture, livestock, and corporate engagement. Clay continues to lead WWF-US efforts to improve private sector supply chain management and help their producers address the most significant impacts. In 2008, he created the Carbon and Commodities program to address supply chain GHG emissions. He has helped whole sectors improve their sustainability performance (e.g., the Global Salmon Initiative). He is now working with the global leather industry to support a DCF leather fund and is testing support for a 1% environmental performance payments to support the transition costs and incentives to finance what producers need to do to become legal and deforestation and conversion free. He is launching a two-year proof of concept for Codex Planetarius, a set of minimum global standards to reduce the key impacts of food and commodities traded internationally. Clay has authored 18 books and 500 articles, and has given more than 1,500 invited presentations. He studied anthropology and agriculture at Harvard, the London School of Economics, and Cornell (PhD).
Senior Vice President, Markets at World Wildlife Fund (WWF)
Dr Jason Clay
Jason Clay is the Senior Vice President for Markets and Executive Director of the Markets Institute at WWF, which was created to identify and address emerging global issues, trends, and tools impacting conservation in more timely, cost-effective, and scalable ways. His career has ranged from working on a family farm and for the US Department of Agriculture. He taught at Harvard and Yale and spent more than 35 years with human rights and environmental NGOs. In 1988, Clay founded Rainforest Marketing, set up a trading company within an NGO, helped Indigenous people and local communities access global markets, and launched Ben & Jerry’s Rainforest Crunch, plus more than 200 other products with sales of $100 million. From 1999 to 2003, he co-directed a WWF, the World Bank, UN FAO, and NACA consortium to identify the most significant environmental and social impacts of shrimp aquaculture, as well as practices to reduce them. From 2004 to 2012, he convened multistakeholder roundtables to create performance-based standards for commodities including salmon, soy, sugarcane, cotton, and beef. He developed WWF’s Market Transformation program in 2006 to work on agriculture, aquaculture, livestock, and corporate engagement. Clay continues to lead WWF-US efforts to improve private sector supply chain management and help their producers address the most significant impacts. In 2008, he created the Carbon and Commodities program to address supply chain GHG emissions. He has helped whole sectors improve their sustainability performance (e.g., the Global Salmon Initiative). He is now working with the global leather industry to support a DCF leather fund and is testing support for a 1% environmental performance payments to support the transition costs and incentives to finance what producers need to do to become legal and deforestation and conversion free. He is launching a two-year proof of concept for Codex Planetarius, a set of minimum global standards to reduce the key impacts of food and commodities traded internationally. Clay has authored 18 books and 500 articles, and has given more than 1,500 invited presentations. He studied anthropology and agriculture at Harvard, the London School of Economics, and Cornell (PhD).
Senior Vice President, Markets at World Wildlife Fund (WWF)
Professor Manny Noakes
Professor Manny Noakes has a PhD in nutrition as well as having trained as a dietitian in her earlier years. She is more recently a graduate of the Australian Institute of Company Directors. Prof Noakes is a former Director and Senior Principal Research Scientist, Nutrition and Health at CSIRO, Australia. She currently runs her own nutrition consultancy and is also a non-executive Director for Meat and Livestock Australia. She is considered a key opinion leader and advisor in nutrition and health, has extensive media and public speaking experience. She has over 25 years’ experience in many fields of nutrition and health, and has undertaken numerous clinical dietary intervention trials in weight management, functional foods and cardiovascular health. She has also undertaken research on diet and sustainability and redefined the environmental agenda from a food and health perspective. Prof Noakes has authored more than 200 peer-reviewed publications which have been cited more than 9000 times and has an H index of 52. She was instrumental in the development and release of five editions of the CSIRO Total Wellbeing Diet, which was launched in 2004 and has been translated into 17 languages and sold over one million copies in Australia. The Total Wellbeing Diet has been further commercialised to a successful online programme. Prof Noakes is the recipient of three CSIRO Medals, is a Distinguished Alumni of Flinders University, holds a research excellence award from the University of Adelaide and is a recipient of the Zonta Club Woman of International Achievement award.
Nutrition Consultant
Professor Manny Noakes
Professor Manny Noakes has a PhD in nutrition as well as having trained as a dietitian in her earlier years. She is more recently a graduate of the Australian Institute of Company Directors. Prof Noakes is a former Director and Senior Principal Research Scientist, Nutrition and Health at CSIRO, Australia. She currently runs her own nutrition consultancy and is also a non-executive Director for Meat and Livestock Australia. She is considered a key opinion leader and advisor in nutrition and health, has extensive media and public speaking experience. She has over 25 years’ experience in many fields of nutrition and health, and has undertaken numerous clinical dietary intervention trials in weight management, functional foods and cardiovascular health. She has also undertaken research on diet and sustainability and redefined the environmental agenda from a food and health perspective. Prof Noakes has authored more than 200 peer-reviewed publications which have been cited more than 9000 times and has an H index of 52. She was instrumental in the development and release of five editions of the CSIRO Total Wellbeing Diet, which was launched in 2004 and has been translated into 17 languages and sold over one million copies in Australia. The Total Wellbeing Diet has been further commercialised to a successful online programme. Prof Noakes is the recipient of three CSIRO Medals, is a Distinguished Alumni of Flinders University, holds a research excellence award from the University of Adelaide and is a recipient of the Zonta Club Woman of International Achievement award.
Nutrition Consultant
Lain Jager
Lain Jager is best known for his time with the hugely successful kiwifruit marketer Zespri where he was CEO from 2008 to 2017. During his tenure as CEO, Zespri grew strongly through the impact and recovery from the bacterial vine disease Psa, grower returns doubled, and the share price grew from $1.00 to $8.00. Today, Lain is involved in a range of investment projects in Tourism and Agribusiness, serves as a Director on several Boards, was the Chairman of the Primary Sector Council that produced the Fit for a Better World Report focused on the New Zealand Food and Fibre Sector, and is the Co-Chair of Te Puna Whakaaronui – a Food and Fibre think tank. Lain and his wife Debra live on a lifestyle block in Tauranga, New Zealand.
Chair of the Thought Leaders Group for Te Puna Whakaaronui Food and Fibre Think Tank
Lain Jager
Lain Jager is best known for his time with the hugely successful kiwifruit marketer Zespri where he was CEO from 2008 to 2017. During his tenure as CEO, Zespri grew strongly through the impact and recovery from the bacterial vine disease Psa, grower returns doubled, and the share price grew from $1.00 to $8.00. Today, Lain is involved in a range of investment projects in Tourism and Agribusiness, serves as a Director on several Boards, was the Chairman of the Primary Sector Council that produced the Fit for a Better World Report focused on the New Zealand Food and Fibre Sector, and is the Co-Chair of Te Puna Whakaaronui – a Food and Fibre think tank. Lain and his wife Debra live on a lifestyle block in Tauranga, New Zealand.
Chair of the Thought Leaders Group for Te Puna Whakaaronui Food and Fibre Think Tank
Samuel Thevasagayam
Samuel Thevasagayam is the Director of Livestock and Aquaculture within the Agriculture Development Program at the Bill & Melinda Gates Foundation, where he oversees the implementation of foundation’s strategy in animal health, animal production, animal nutrition, animal systems and livestock off-take markets in sub-Saharan Africa and South Asia. Samuel started his career as a small animal clinician and lecturer at the University of Peradeniya, Sri Lanka. He then moved to work in academic research, Pharmaceutical R&D (veterinary and human), Business Development and the not-for profit sector, living/working in four continents before joining the Gates Foundation in 2012. Samuel graduated from the faculty of Veterinary Medicine and Animal Sciences of the University of Peradeniya, Sri Lanka. Gained his PhD in veterinary virology from the University of Hertfordshire for his research on foot-and-mouth disease virus at the Pirbright Institute and holds an MBA from the University of Oxford. He is a Fellow of the Royal Society of Biology.
Director of Livestock and Aquaculture within the Agriculture Development Program, Bill & Melinda Gates Foundation
Samuel Thevasagayam
Samuel Thevasagayam is the Director of Livestock and Aquaculture within the Agriculture Development Program at the Bill & Melinda Gates Foundation, where he oversees the implementation of foundation’s strategy in animal health, animal production, animal nutrition, animal systems and livestock off-take markets in sub-Saharan Africa and South Asia. Samuel started his career as a small animal clinician and lecturer at the University of Peradeniya, Sri Lanka. He then moved to work in academic research, Pharmaceutical R&D (veterinary and human), Business Development and the not-for profit sector, living/working in four continents before joining the Gates Foundation in 2012. Samuel graduated from the faculty of Veterinary Medicine and Animal Sciences of the University of Peradeniya, Sri Lanka. Gained his PhD in veterinary virology from the University of Hertfordshire for his research on foot-and-mouth disease virus at the Pirbright Institute and holds an MBA from the University of Oxford. He is a Fellow of the Royal Society of Biology.
Director of Livestock and Aquaculture within the Agriculture Development Program, Bill & Melinda Gates Foundation
Natalie Ahlborn
Natalie's role is to inform the SNi from a nutritional perspective. She also supports the team by representing SNi's work through speaking engagements and other outputs.
Postdoctoral Research Fellow
Patricia Soh
Prior to her current PhD, Patricia attained a Master of Science in Human Nutrition at Massey University, Albany. The current focus of her PhD is investigating nutritional concerns within vegan diets.
PhD Student
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