Nutrition and Physical Degeneration

Over nearly ten years, dentist and dental researcher Weston A. Price and his wife traveled to hundreds of cities in 14 countries, including some of the world's most remote areas, looking for healthy people rather than sick ones. Among groups living on their indigenous foods he recorded well-formed dental arches, little tooth decay, strong resistance to tuberculosis and good overall health. When those peoples switched to modern foods like canned goods, refined vegetable oils, white sugar and white flour, he saw degeneration appear quickly: dental caries, deformed jaws, crooked teeth, arthritis and weaker resistance to tuberculosis. Price documented the findings with hundreds of photographs, and the text is freely available through Project Gutenberg Australia.

Adam Haritan, founder of Learn Your Land, cited it as one book that immediately comes to mind for him.