Ray Sahelian, M.D., is a respected physician and medical writer. He is a regular contributor to "Healthsmart Today," "New Living," "Yoga Times," and "Whole Life Times," and is the author of "Natural Sex Boosters," "Mind Boosters," and "Creatine," Donna Gates is a widely acclaimed nutritional consultant, lecturer, and author. She is the author of "The Body Ecology Diet" and "The Stevia Story,"