An interesting book I recently read called "The Rosedale Diet" pointed out that diabetes is more or less the same as aging. Something in the neolithic diet appears to be aging people fairly rapidly compared to the diet of hunter-gatherers. One of the things triggering early puberty in the last century is the introduction of soy as a filler to many processed meats. I don't recall is soy contains estrogen or merely something very much like estrogen, but it's not recommended for children or for males of any age.