Yes, butter is not Paleo per se, but my point is that this exclusion is the byproduct of a very strict and conservative approach that does butter an injustice. For the reasons I stated in my posting, butter is a good- quality, healthy fat, which also happens to be convenient in that it opens a lot of doors at restaurants where you may otherwise be stuck with soybean oil or worse. Mind you, I always have organic butter (and cream) at home. I fully agree that lactose is probably bad news (I don't handle it that badly, but nevertheless, it's not easy on the stomach). Although I am not totally convinced of the undesirability of casein, I DO avoid cheese in almost all circumstances (partly b/c of extra salt, heated fat, lack of nutritive value, and concern over alien protein). I wonder what the view is organic cream, cottage cheese, sour cream, whey protein, goat and farmer cheese - are these any better?