Blood Types and Dieting: Is the Eat Right Plan Really Right?

The link between health risks such as obesity and the four distinct blood types has been cause for debate for a long time now, and the debate was only further fueled by the apparition and increased popularity of Dr. Peter J. D’Adamo’s dieting program Eat Right for Your Type: The Individualized Diet Solution to Staying Healthy, Living Longer & Achieving Your Ideal Weight.

Numerous scientific authorities in the fields of nutrition and dieting rushed to claim that there wasn’t much of scientific basis behind this diet, and that it was solely based on lore, popular wisdom and old wives’ tales. Its advocates, however, argue that the connection between health concerns and the four different blood types has been insufficiently and inconclusively tested; meanwhile, the diet does appear to be working for some. But what does this diet consist of? What can its adherents eat and what are its main tenets?

The diet starts off from the assumption that you have had at least one blood type test done and know whether you are a type A, B, AB, or 0. It involves no calorie counting, or tracking of the amount of fat consumed, which might make it seem easier to follow. Indeed, if monitoring and reporting are an issue for you, then this diet might just do the trick. Be aware, however, that its numerous restrictions by blood type may make it difficult to follow if several people living within the same household try to adhere to it.

Type A

According to D’Adamo, A stands for ‘agrarian’, which means that people with this blood type function great on vegetarian diets. That’s why their prescribed weight loss plan includes plenty of whole grains, organic fruit and vegetables, as well as protein from soy and legumes. D’Adamo recommends people with this blood type only engage in light, gentle forms of exercise.

Type B

Type Bs are considered ‘nomadic’ by D’Adamo, descendants of the migrant tribes from the olden days. As such, they can lose weight efficiently by eating dairy and lean meats, but should steer clear of wheat, corn, and lentils. They can also exercise more vigorously than their type A counterparts.

Type AB

AB types are ‘modern’ types within the Eat Right dieting plan. This means that they can safely enjoy the leaner forms of protein, such as seafood and fish, as well as tofu. While they can eat most of anything, they are best advised to avoid chicken, beef, and pork. Also, since they are the most stress-prone of all the groups, they should practice nerve-soothing, calming exercises.

Type 0‘

0’ stands for “old” in D’Adamo’s book and diet plan, which means people with type 0 blood come from the oldest blood lines known to man. This means their metabolism can be properly fueled by lean meat of all kinds, but especially poultry and fish. They can also benefit from plenty of heavy exercising, such as cardio, but should stay away from all types of grains and flour-based products, as well as from legumes.

If you haven’t taken a blood type test yet, we learned that you can easily order one online via and then start planning out your diet, according to d’Adamo’s principles.

Be aware, however, that the best and most efficient diets are those which take into account the specific health needs and lifestyle specifics of each individual. To boot, a lot of criticism has been waged against D’Adamo, since he offers the adherents of his plans the semblance of scientific argumentation and reasoning, even though links between health risks and medical conditions are not nearly officially recognized within the medical community. However, as more and more testing is undertaken, attitudes may change vis-à-vis this subject, which is why perhaps the diet shouldn’t be entirely refuted just yet.