Scientists Design Diet That's Healthy for You and the Planet

What if the same diet that could save your life could also save the planet?

A team of international scientists has answered that question with the Planetary Health Diet, a flexible eating plan that tackles two crises at once. Published last October by the EAT-Lancet Commission, this science-backed approach could prevent 15 million premature deaths each year while dramatically reducing food's environmental toll.

The numbers behind our current food system are staggering. Agriculture accounts for 30% of global greenhouse gas emissions and uses 70% of the world's freshwater. Meanwhile, unhealthy diets kill more people annually than air pollution does.

The solution turns out to be surprisingly simple and delicious. The Planetary Health Diet centers on fruits, vegetables, nuts, legumes, and whole grains, which together provide about 65% of daily calories. It includes roughly one portion of red meat weekly, plus two modest servings of poultry or fish.

The best part? You probably already know how to eat this way. Traditional Mediterranean, South Asian, East Asian, African, and Latin American cuisines naturally align with these principles. The diet offers plenty of flexibility while delivering all essential nutrients.

Right now, only 1% of the world's population eats in a way that's healthy for both people and the planet. Most of us consume too much meat and processed foods while skipping the vegetables, fruits, and legumes our bodies need.

The Ripple Effect

When we shift toward plant-rich diets, the benefits cascade outward. Heart disease, diabetes, and certain cancers become less common. Rivers and lakes suffer less nutrient pollution. Biodiversity gets a fighting chance. Climate emissions drop significantly.

The commission brought together specialists in nutrition, climate, economics, health, and agriculture from 35 countries. Their message is clear: what we eat isn't just a personal choice anymore. It's one of the most powerful tools we have for protecting both human and planetary health.

Your lunch really does matter, and now we have a roadmap showing exactly how to make it count.