Steffi, I've seen the book, I think it's the one you mean. It is fascinating to speculate about the origins of blood types, but I thought the blood type diets were rather humbuggy. For instance, most Scandinavians are blood type A, and one thing we A blood types should not eat, according to that book, is Herring. Herring has been on the daily menu in Scandinavia both for lunch and dinner since the ice drew back after the last ice age. We could not have survived for so long and been so generally healthy if we'd eaten the wrong thing every day for several thousand years. It is a neat idea, but I think the idea of special foods for different blood types is just that - a really neat idea, but not a good idea.

I hope you'll forgive me for stepping in with my big hobnailed shoes and calling the book silly. I think you're wise not to read it too closely. Maybe it isn't even the same book!!!
I'm A (negative) and I'm going to keep eating Herring.

birte