David Ludwig, MD, PhD

David S. Ludwig, MD, PhD, is a practicing endocrinologist and researcher at Boston Children's Hospital, Professor of Pediatrics at Harvard Medical School.

Dr. Ludwig is Principal Investigator on numerous grants from the National Institutes of Health, has published over 150 scientific articles, and presently serves as Contributing Writer for JAMA.

Dr. Ludwig also directs the New Balance Foundation Obesity Prevention Center. His research focuses on the effects of diet on hormones, metabolism and body weight. He developed a novel “low glycemic load” diet (i.e., one that decreases the surge in blood sugar after meals) for the treatment of obesity-related diseases. In addition, his group has done some of the original studies linking sugar-sweetened beverages and fast food to excessive weight gain, heart disease and type 2 diabetes.