RECOMMENDED FOODS FOR EACH BLOOD TYPE:
BLOOD TYPE A:
Consume: whole grains instead of small ones (pasta or bread), vegetables. Also, consume berries, avocados, figs, nectarines and apples. Allowed proteins are nuts and soy.
Do Not Consume: Any kind of meat is not recommended as well as kidney beans and dairy products.
BLOOD TYPE 0:
Consume: Seafood, Red meat, poultry (chicken/turkey) and other proteins are highly recommended. When it comes to vegetables spinach, kale, broccoli and kelp are a good choice.
Do Not Consume: legumes (beans, peanuts, lentils), dairy and egg products, as well as grains and wheat.
BLOOD TYPE B:
Consume: green vegetables, fruits, certain grains, turkey, red meat, fish.
Do Not Consume: any kind of seeds, peanuts, chicken, lentils and corn. And try to avoid buckwheat.
BLOOD TYPE AB:
Consume: tofu, turkey, seafood and fish. Also, vegetables, beans, watermelon, figs, apples and bananas and legumes are a good option.
Do Not Consume: corn, red meat (you may experience stomach acid), buckwheat. Be careful with consuming big quantities of alcohol and caffeine.
Organic food can be applied to all blood types and a nutritionist can help you enrich your diet if necessary. Generally the food groups are strict, so you if you are dieting you don’t have to worry about calories. Also, first of all get informed about the positive and negative side-effects of your food choice. If you are dieting with your family and you all have different blood types, the Atkins diet is the recommended one for you, because it avoids entire food groups.
The nutrition in accordance with your blood type can be suitable for one person, but unsuitable for other. Reading Dr. D’Adamo’s book may be very helpful in getting a grip of the whole concept. Your nutritionist or medic can also help you with giving you proper advice on any change you want to make, especially if you are suffering from any medical condition.
Source : Natural Cures Not Medicine

usefull research seen for the first time
There is whole website devoted and several books written on the subject. Was also some one did a study on how your Ethnic background determined your diet as well. didnt find it as useful. I’m type O and find when i stay to a strict meat diet. my body lvls out to its optimum weight.
informative…i want to learn more about it..my blood group is b+
I would like to know more about the group o+, what diet plan to follow and what exercise or workouts r suited for this group
This appears to have NO SCIENTIFIC stands…. no research, no experiments. The mere fact that it tries to make a claim via copies sold says a lot. Copies sold should make absolutely no difference, as the science should stand true even if not a single person bought the book. Also there is that ‘believer’ word, which shouldn’t exist in ANY scientific paper.
Timos, If you actually take the time to read more about this diet you will find that there has been research done on different blood types. Quite extensive research! That is how they found that different blood clots after eating different foods. They found this to be consistent with different blood types hence the blood type diet. There are consistent patterns found with the different blood types. So I urge you to read and investigate MORE than just this article because there is a lot more to this subject!