Dr. Gratton is a physician specialist in family medicine and clinical physician at the UCLA Center for Human Nutrition in the risk factor obesity program. He has written numerous articles on nutrition and obesity and has appeared on television speaking on nutrition, anti-aging medicine, sports nutrition, and other medical topics. He is also the vice president of Medical Affairs and Education at Herbalife International, where he coordinates the strategic management and direction of Herbalife’s Nutrition Advisory Board.

Dr. Gratton earned an undergraduate degree in Human Physiology with an emphasis on exercise. Gratton competed on the UCLA Track and Field Team and the UCLA Cross Country Team as a Varsity athlete. He further completed his Masters in Public Health while conducting research at the UCLA Sports Medicine Rehabilitation Center. Dr. Gratton continues to conduct research at UCLA in the area of nutrition and exercise.

Dr. Gratton was awarded a medical degree from Mount Sinai Medical School of New York University and fulfilled his residency in family medicine at Los Angeles County Hubert Humphrey Family Medicine Center. He completed a postdoctoral fellowship in clinical nutrition at the David Geffen School of Medicine at UCLA.

Dr. Gratton has been awarded Diplomate of The American Board of Family Practice and Diplomate of The American Board of Physician Nutrition Specialists.