Film examining the long-held belief that the consumption of animal protein is essential for success in sports and bodybuilding. In recent years, several military instructors, bodybuilders and sportspeople have become increasingly vocal about a vegan diet being just as good, if not better for their purposes. Several people in the field are interviewed, including Arnold Schwarzenegger, who already stated in one of his first films: "Milk is for babies. As you grow older, you drink beer."