The raw food diet has become popular with some people who want to do anything they possibly can to improve their health. All the foods in the diet are eaten raw so that the food's chemical structure isn't changed. Proponents of the raw food diet believe that raw foods contain more beneficial enzymes than cooked food because heating food breaks down the enzymes.

While most raw food diets include only fruits, vegetables, nuts, and seeds, some raw diets include raw milk, meat, and eggs. Raw or...