 In 1925 he was attracted to calcium metabolism when he became an active student of nutrition.In the early 1930s, Price's research suggested vitamin B and mineral salts were important dietary components to prevent caries.In 1939, Price published "Nutrition and Physical Degeneration", a book that details a series of ethnographic nutritional studies he performed across diverse cultures, including the Lötschental in Switzerland, Native Americans, Polynesians, Pygmies, and Aborigines, among many others.