Ask Dr. D'Adamo

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Questions About The Diets

How Diligent?


First off, thanks for publishing your blood-type based diet book. I have had extraordinary results. I admit I haven't read the entire book but I have attempted to find specific information on certain foods, with no luck. As a type B, I have eliminated some of my favorite foods from my diet: wheat, corn, chicken, tofu, avocadoes, tomatoes. Now, giving up wheat is a pain in the neck, but giving up avocadoes and tomatoes is a culinary disaster. What I'd like to know is, so to speak, the price expected to be paid for indulging in each of these (and other) forbidden foods?


The price to be paid depends on the relative health of the person in question. If you are healthy, it is not the avoidance of one food over another that is going to make much of a difference, but rather the aggregate of how closely you follow the precepts over an extended period of time.

I think a fair categorization of compliance would be something like this:

  • Great compliance: 70-80 beneficials; 20-30% neutrals
  • Good compliance: 60-70% beneficials; 10-20% neutrals
  • Average compliance: 50-60% beneficials; 20-30% neutrals

Although some people have reported significant results with compliance levels even lower than average.

The Ask Dr. D'Adamo internet advice column ran from 1996 to 2009, at which time Dr. D'Adamo's teaching and programming responsibilities no longer allowed him to devote time and resources to directly answering visitor questions. However we've recently reorganized this treasure-trove of material and made it again available to his readership. He occasionally posts new entries. These are marked with a NEW tag.

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