Dr Joseph Mercola is an osteopathic physician, and board-certified in family medicine. He served as the chairman of the family medicine department at St Alexius Medical Center for five years, and is trained in both traditional and natural medicine. In addition, Dr Mercola was granted fellowship status by the American College of Nutrition (ACN) in October 2012. Dr Mercola is author of three New York Times best-sellers: The Great Bird Flu Hoax; The No-Grain Diet; and Effortless Healing.