Blood Type Diet

The diet was created by Peter J. D'Adamo, N.D., a naturopathic physician whose father first introduced him to the idea that optimal health might be linked to specific diet and exercise patterns for each blood type. D'Adamo continued exploring this theory and eventually concluded that his father's observations held merit, hence the birth of the Blood Type Diet. Although D'Adamo attempts to bring in scientific facts, this diet is based on convoluted nonsense. No studies, after all, indicate that your blood type should determine what you can or can't eat. Even worse, all four of these diets require you to abide by lists, shunning many foods that are otherwise healthy. And although these diets do recommend exercise, there's no logical rationale for creating an exercise program based solely on blood type.