yea when it comes to diet, I think longevity studies can usually provide the most useful insights (although usually pretty generalized). You can do a diet for 5

yea when it comes to diet, I think longevity studies can usually provide the most useful insights (although usually pretty generalized). You can do a diet for 5-10 years and not see the ill effects until that far in. Anyone who tries to sell you on a way of eating that has only been done en masse (relatively speaking) for a few years is a bit suspect.