Evidence library
Deep, sourced guides on food, animals and the planet
Long-form explainers built from peer-reviewed research, UN datasets and government dietary guidance — plus practical how-tos you can use the same day. Every number is attributed, every claim is checkable.
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Nutrition scienceProtein on a plant-based diet: what the evidence actually saysProtein is the most common worry and the least common deficiency. Here is the requirement, the arithmetic, and the research on plant versus animal protein.Read the guide Climate scienceThe climate footprint of food, measured properlyFood causes roughly a quarter of global greenhouse-gas emissions. Life-cycle data shows where inside that quarter the emissions actually sit — and it is not transport.Read the guide Nutrition scienceVitamin B12: the one supplement, explained without hand-wavingB12 is made by bacteria, not by animals or plants. Here is why supplementation is the honest answer, what dose works, and how to test.Read the guide
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3 guides
Nutrition scienceProtein on a plant-based diet: what the evidence actually saysProtein is the most common worry and the least common deficiency. Here is the requirement, the arithmetic, and the research on plant versus animal protein.9 min readRead the guide Nutrition scienceVitamin B12: the one supplement, explained without hand-wavingB12 is made by bacteria, not by animals or plants. Here is why supplementation is the honest answer, what dose works, and how to test.7 min readRead the guide Nutrition scienceIron, zinc, iodine, omega-3 and calcium without animal productsFive nutrients deserve attention on a plant-based diet. None require animal foods — they require knowing the absorption rules.11 min readRead the guide
Turn evidence into a week of meals
The 7-day starter plan translates everything above into a shopping list and simple recipes.