In his book “Nutrition and Physical degeneration” he demonstrated that within one generation of the parents and children consuming white flour, sugar and other nutrient-poor foods, the faces became narrower, the dental arches irregular with crowded teeth and they began to develop tooth decay. Dr. Price concluded that this was a result of poor nutrient absorption interfering with growth and tooth development. He also noted that this change in dietary habits increased the development of allergies, mouth-breathing, a change in tongue posture and development of a long and narrow face. Also the generation fed with refined sugar and white flour was less tolerate to many infections and tuberculosis.

Dr. Price indicated that these conditions are in fact not genetic but, rather, caused by a lack of vital nutrients during the formative period of development.

Traditional cultures followed special preconception diets, one or two years before birth. These diets included combination of grass-fed meats and organ meats such as liver, eggs from pastured chickens, raw milk and butter, cod liver oil, fish eggs, fermented foods (cheese, yogurt, sauerkraut, etc.), soaked nuts and freshly prepared grains, and fresh fruits and vegetables. These foods supplied important nutrients essential for proper infant development such as vitamins A, D, E, and K2.

Facial narrowing took place primarily when the three fat-soluble vitamins (A,D,K2) become deficient in the diet. The minerals are necessary during bone and teeth formation already at developmental stage. So if a mother during pregnancy has deficiencies, most probably child will have problems later.