If you're following the Blood Type Diet, it doesn't matter if your blood is Rh positive or negative. Naturopathic physician Peter D'Adamo, who popularized the diet plan in his book "Eat Right 4 Your Type," says "few significant differences have been noted with regard to Rh blood type and diet." There are others in the medical profession who argue blood type doesn't make any difference at all in the foods you should choose.
Blood Type Theory
D'Adamo's diet plan is based on his theory that people with different blood types digest food proteins in different ways. He says that if people stay away from foods that are incompatible with their blood type, they can lose weight, feel healthier and possibly avoid developing certain diseases. D'Adamo says he developed his plan after studying medical history, anthropology and genetics. Health professionals from institutions such as MayoClinic.com say there's no sound scientific evidence this type of diet is any more beneficial than other diet plans.
Blood Type Evolution
The type of food you eat on the D'Adamo diet is based on when your blood type developed. He says early hunter-gatherers had blood type O, so today's Type O's fare best on a high-protein diet. Type A's came along during more agrarian times, according to D'Adamo, so they do best on a vegetarian-style diet. He says type-B blood was next to evolve, and today's Type B's can enjoy a range of food from the type-O and type-A eating lists.
Type B Foods
The Blood Type Diet says people with type-B blood should eat plenty of meats and dairy, some fish and lots of fruits and vegetables. But there are some foods Type B's should avoid. D'Adamo says a person with type-B blood may have trouble with chicken, bacon and shellfish. Nuts and seeds are not good for Type B's, and D'Adamo says wheat can be a problem for some people, too. According to D'Adamo, corn and buckwheat are major factors in weight gain among people with type-B blood.
Exercise
Exercise is another component of the Blood Type Diet. In addition to choosing foods for your blood type, D'Adamo recommends exercises that he says are best for each of the four major blood groups. Since Type O's stem from the days of early man, they do best with intense physical activities. Those farm-oriented Type A's benefit from calming exercises. Again, Type B's fall somewhere in the middle. D'Adamo recommends moderate physical activities for people with type-B blood that require mental balance. He suggests hiking, cycling, tennis and swimming.
