A: The reason that applies to most of us is that, contrary to popular belief, vegetarians are actually a lot healthier than those who eat meat. Studies show that vegetarians are up to 40% less likely to develop cancer than meat eaters. Also, according to the American Dietetic Association, vegetarians are at lower risk for developing heart disease, diabetes, obesity and hypertension. This is because a healthy vegetarian diet is typically low in fat and high in fiber.