 Now the book I've often cited that should be a part of your library, Nutrition and Physical Degeneration, by Dr. Weston Price, showed that tooth decay is only prevalent where refined foods are commonly used. So as a dentist, and I've said this many times, the dentists of 100 years ago were the nutritionists. The dentists of 100 years ago used nutritional therapies with their patients because they knew the condition of the teeth