If there is one thing that we could speculate as being highly probable concerning the life style of primitive man, it is that he obtained his food primarily from animal sources and ate it raw. Historically, it appears that complexi- ties in food preparation and processing have come with the more complex and technical societies. Corresponding the rise in production and consumption of refined and processed food has been the rise in physical deterioration, and the birth of heretofore unknown degenerative diseases.