Todd, In your last post, I think your questions/concluding remarks are another way to sum up the literature about equating diet with blood types, body types, etc. Seems to be a lot of anecdotal evidence to support this. Personally, I do very poorly on a high carbohydrate diet. This also leads me to question your statement "even though the basic nutritional needs of all humans are the same.." ..... are they?? I'm not so certain that we should be starting out from this premise. I think that the existence of RDA provides a facade to fool us into thinking that human nutritional requirements are not unique for different groups and that we all require the same stuff. If we look at diets around the world, nutrient quantities probably vary significantly between populations. Linda Scott Cummings >Anyway, the question that I am leading up to is this: Even though >the basic nutritional needs of all humans are the same, is there >much evidence to support the contention that some populations are >more adapted to agricultural diets, and perhaps somewhat >disadapted to hunter/gatherer diets, than others? Blood type >could be a marker for such adaptation/disadaptation, or perhaps >there are other markers. > >Ref: Clarence Lieb, MD, The effects on human beings of a twelve >months' exclusive meat diet. JAMA, July 6, 1929, 20-22. > >Todd Moody >[log in to unmask] >