Recent data on these issues make me more comfortable today saying what not to eat. Our ancestors had no refined carbs, which are killing us. Weβd be wise to limit salt and saturated fat, which our ancestorsβ prey had little of, and fiber and omega-three fatty acids seem to be good. Most humans have to avoid dairy; many must avoid wheat. Find out if youβre one of them. Exercise. Thatβs about it.Very similar to my take.