"Eat Right for Your Type" is the title of the book by Dr. Peter D'Adamo and is the basis for the Blood Type Diet. Although the book has been around since 1996, the diet is not very commonly known. It is also not very well regarded by other professionals in the dieting and nutrition field.
The Premise: The Blood Type Diet is not really a diet; in fact, as the book explains, "diet does not necessarily mean weight loss plan, that is more of a side benefit to following this plan." This is more of a way to eat. What the eating plan subscribes to is that each blood type - A, B, AB, or O - should follow a certain type of diet for optimum benefit. This will, in effect, produce weight loss, increase energy levels, help achieve greater mental clarity, and increase one's ability to deal with stress more effectively.
Dr. D'Adamo also asserts that each blood type has its own historical origin and comes with its own set of characteristics. This means that each are "susceptible to different diseases, should eat different foods, and exercise in a completely different manner". Confused yet?
The Diet: If you are Type A Blood Type, then you should follow a diet rich in complex carbohydrates, and greatly limit your intake of high fat foods. You should also limit or altogether eliminate your intake of dairy, meats, and animal fat. Basically Type A's do best as vegetarians and should stick with low impact exercise, such as yoga, meditation, or Tai Chi.
If you are Type AB Blood Type, then you are a combination of A and B and therefore carry some characteristics of both. You should avoid alcohol and caffeine. You should focus on tofu, seafood, low fat dairy, and green vegetables. You should also avoid smoked and cured type meats. The best exercise plan for you involves a mixture of aerobic and calming options, such as running or biking three times per week and practicing yoga or Tai Chi two days per week.
If you are Type O blood Type then you are most vulnerable to ulcers and thyroid disorders. You should particularly avoid caffeine. Your eating plan on the blood type diet should include lean, organic types of meat, vegetables, and fruits. You should eliminate wheat and dairy, which are triggers for digestive and health issues. It is best for you to engage in aerobic activity for 30-45 minutes, at least four to five times per week.
What to get excited Over: It's detailed for those of you that prefer lots of information. It has exercise recommendations and an explanation for each blood type.
Things to Consider: The things to consider are many; too many to list. The main disadvantage of the Blood Type Diet is that it is technical and can be hard to understand. Also, all the supplements available for purchase can be expensive, if you can even figure out what you really need. Lastly, eliminating whole food groups altogether is unbalanced.
Verdict: While this diet has some good information embedded in it and some good basic eating principles, it is not recommended in its entirety.