Should we eat meat, eggs, dairy and other animal-sourced foods? If so, how should we produce them and how much should we eat? If not, what should we eat instead? These are just some of the more contentious debates about the future of food systems.This Explainer summarises some of the key debates about livestock and its alternatives and describes both the arguments and the evidence underpinning different points of view. We look both at foodstuffs (meat, fish, plants and new foods based on cells grown in bioreactors) and farming methods (both intensive and extensive) with regards to discussions about their environmental, health and social impacts. In so doing, we explore the assumptions and values that often lead stakeholders to differing conclusions about what a sustainable food system looks like.https://doi.org/10.56661/2caf9b92 

Ecomodernism is an environmental philosophy rooted in the belief that technological progress can allow humans to flourish while minimising our impacts on the environment, in particular by freeing up land for conservation by intensifying the production of food and other resources using technology. This explainer describes the values, goals, and practical solutions promoted by ecomodernists; what they would mean for land use and the food system; the history of the ideas that underlie ecomodernism; and the main contestations around the values and evidence underpinning ecomodernism. https://www.doi.org/10.56661/041dba86 A shorter written version of this summary is available here.

This building block explores key statistics about competing uses for food system resources, focusing on the use of land, crops and wild fish for feeding humans or feeding livestock – a trade-off known as feed-food competition. It also outlines different ways in which people interpret these figures and sets out how these differing perspectives link to broader debates about what we should eat and how we should produce food, particularly concerning what role (if any) livestock should play in the global food system. https://www.doi.org/10.56661/dde79ca0 A shorter written version of this summary is available here.

Around one third of the weight of food produced for human consumption is lost or wasted, and around a third of crop calories are lost to the food system during livestock production. Meanwhile, the global food system causes significant environmental impacts and around 800 million people are undernourished. This building block examines the following aspects of food loss and waste: mainstream definitions and alternative understandings, global statistics, and ‘hierarchies’ for prevention and treatment. Last update: 25 March, 2019 https://www.doi.org/10.56661/f98ed9f6

Changes in diet and lifestyle can be caused by many factors and can, in turn, cause changes in health. This building block explains what the nutrition transition is and its implications for health and environmental sustainability. Last update: 12 October, 2018 https://www.doi.org/10.56661/39a7336f

People need to be able to obtain and utilise a healthy amount and balance of nutrients. Without this, they can suffer severe impacts to their health and well-being. This building block explains malnutrition and its causes, prevalence and consequences. Last update: 18 June, 2018 https://www.doi.org/10.56661/6a0223ed