Andrew W. Saul, Ph.D., has taught clinical nutrition at the New York Chiropractic College and health science and biology at the State University of New York. He has been in practice as a natural therapeutics consultant for nearly thirty years. Dr. Saul publishes the Doctor Yourself Newsletter and is the author of Doctor Yourself: Natural Healing That Works. He is also a contributing editor for the Journal of Orthomolecular Medicine. His website www.doctoryourself.com is an important orthomolecular nutrition resource on the Internet.