Dr. David Brownstein is a family physician, Board-certified in family practice, and medical director of the Center for Holistic Medicine. Dr. Brownstein has lectured internationally to physicians and clinicians about his success in using natural hormones and nutritional therapies in his practice.  Dr. Brownstein has authored 13 books: including Overcoming Arthritis, Vitamin B12 for Health, Overcoming Thyroid Disorders, The Miracle of Natural Hormones, The Guide to a Gluten-Free Diet, and The Soy Deception. www.drbrownstein.com  Dr. Brownstein will sign books in Booth 524.