For a's soy is fine, but you should be aware of and follow the portion sizes allowed, doctor d'adamo says that you should try and eat more cultured soy such as tamari, tempe and miso vs tofu

Sorry I missed this post earlier, white rabbit!

There are differing opinions about soy. Personally, I have a BIG problem with it (not psychologically or philosophically, but physically). It is possible to be allergic to beneficial foods, but I think the thing with me is that I am probably a non-secretor (another kind of blood classification) for whom soy is just neutral.

As already mentioned, according to Dr. D, soy is fine for type A and many seem to thrive on it, eating many servings a day.

I do eat some fermented soy products (even all the anti-soy people say fermenting gets rid of most of the negative properties) . . . couldn't live without miso!