Health and nutritional aspects of sustainable diet strategies and their association with environmental impacts: a global modelling analysis with country-level detail

What happens when researchers test different strategies for sustainable eating across more than one hundred fifty countries? This episode breaks down a major global study comparing three approaches: cutting animal products, fixing weight problems, and adopting balanced plant based diets. We explore why strategies that work in wealthy countries can backfire in lower income regions, how vegetable consumption matters more for mortality than cutting meat, and why greenhouse gas reductions don't always align with water or land use. You'll learn which dietary changes deliver the biggest health and environmental wins, where the tradeoffs emerge, and why sustainable eating looks different depending on where you live. The findings challenge simple narratives about food and climate while revealing practical paths forward.