Healthy vegetarian diets support a lifetime of good health and provide protection against numerous diseases, including the United States’ three biggest killers: Heart disease, cancer and strokes. Drs. Dean Ornish and Caldwell Eselstyn –two doctors with 100 percent success in prevnting and reversing heart disease – have used a vegan diet to accomplish it, as chronicled most recently in Dr. Esselstyn’s “Prevent and Reverse Heart Disease,” which documents his 100 percent success rate for unclogging people’s arteries and reversing heart disease.