Sari Acra, M.D., MPH is professor of Pediatrics and Division Chief of Pediatric Gastroenterology at Vanderbilt University Medical Center. He is also Director of the Fellowship Program at the D. Brent Polk Division of Pediatric Gastroenterology, Hepatology, and Nutrition. Dr. Acra’s research interests revolve around the field of nutrition, particularly the impact of alterations in caloric energy balance and body composition on human diseases.