The Claim
“Vegan diets inevitably lead to nutritional deficiencies”
Vegans are nutritionally deficient
Quick Answer
Well-planned vegan diets are nutritionally adequate for all life stages according to major dietetic associations. Some nutrients require attention (B12, vitamin D, omega-3s), but deficiencies are not inevitable.
Evidence Summary
The claim: "Vegan diets inevitably lead to nutritional deficiencies." What the science says: Major dietetic association positions: Academy of Nutrition and Dietetics (2016): "Appropriately planned vegetarian, including vegan, diets are healthful, nutritionally adequate, and may provide health benefits for the prevention and treatment of certain diseases. These diets are healthful and nutritionally adequate for adults (AND 2025 position; see note below), including pregnancy,