Dr. Peter J. D'Adamo is a renowned naturopathic physician, researcher, and lecturer, whose extensive research and clinical testing of the connection between blood type and health, has led to powerful advances in the treatment of breast cancer. Chosen as a Physician of the Year in 1990 by the American Association of Naturopathic Physicians, Dr. D'Adamo is also the founder of The Journal of Naturopathic Medicine and frequently contributes articles to medical journals.