There is a classic work of Weston A. Price "Nutrition and Physical Degeneration" exactly on the topic, except that he studied the living people - tribes all ove

There is a classic work of Weston A. Price "Nutrition and Physical Degeneration" exactly on the topic, except that he studied the living people - tribes all over the world, who still do not eat processed foods etc. http://gutenberg.net.au/ebooks02/0200251h.html http://gutenberg.net.au/ebooks02/0200251h.html