And the !Kung--most of the fat in their diet comes from the mongongo nut, that's an especially rich source of omega-6. I don't think it's at all clear that a high omega 6 diet, in and of itself, leads to inflammation and Western disease. It's not hard to find an association of these. Or reasonable studies that show a plausible mechanism. Personally I avoid plant oils not because of the omega 6 in them--I don't worry about the omega 6 in nuts or even peanuts--but because most of these refined oils taste like crap to me.