The only supplement required on a vegan diet is B12. Vegetarians don't even need that. The key is to eat a variety of plant-based foods, like our ancestors ofte

The only supplement required on a vegan diet is B12. Vegetarians don't even need that. The key is to eat a variety of plant-based foods, like our ancestors often did, rather than a lot of junk food. Doing that, studies show that plant-based diets are much more healthy. Protein is not an issue, since most Americans get way too much protein anyway, and there is tons of protein in veg, grains, and beans.