I don't know if this is the proper place to raise this question -- it's not quite health, not quite research, but it's not a practical one either. I hope someone will move it, if this isn't the right place.

There are suggestions, in books about body type and blood type, that ethnicity determines eating patterns, both preferences and what each body handles best. I always take the quizzes in these books, and find the matches amazing in my own case. However, they're also conflicting. (I'm a perfect Type O blood, which is the "caveman," all natural, heavy on the red meat type, and also a perfect Type A body, which is supposed to eschew red meat and go for the grains and the dairy.) I'm beginning to wonder if this is why I've spent my life bouncing back among food plans!

My question is, has anyone else thought about this, or read about this? What if your mother is descended from Goat people and your father from Cow people -- whose digestion did you get? Can you have Italian taste buds and a Kenyan tummy? In my case, both sets of parents are Northern Europeans, but my mother's family has been eating refined carbs for generations and my father's family was definitely black bread. My mother (who's tiny and totally healthy) lives in bread, jelly, biscuits, honey and a little dash of ham or chicken. About 2 tablespoons of protein a day.

Does anyone have any thoughts or experiences with this?