Dr. Moss graduated from the University of Michigan Dental School in 1974 and practiced dentistry in Grand Rapids, Michigan up to 1985. Having employed clinical nutrition in his practice for six years, he decided to use this experience and enter the professional supplement industry. For the last 23 years he has operated Moss Nutrition Products, which serves health care professionals with nutritional supplements. Since 2000 he has served as adjunct faculty at the University of Bridgeport Nutrition Institute, starting with the Vitamins and Minerals class and, most recently, adding the Assessment in Nutrition class to his teaching responsibilities. He also co-authored the text, Textbook of Nutritional Medicine with Mel Werbach, M.D. Finally, Dr. Moss was president of the International and American Association of Clinical Nutritionists (IAACN).