David S. Ludwig, MD, PhD is an endocrinologist and researcher at Boston Children’s Hospital. He holds the rank of Professor of Pediatrics at Harvard Medical School and Professor of Nutrition at Harvard School of Public Health. Dr Ludwig is Founder of the Optimal Weight for Life (OWL) program at Children’s Hospital, one of the country’s oldest and largest multidisciplinary clinics for the care of overweight children.
His research focuses on the effects of diet on hormones, metabolism and body weight. In particular, he developed a novel “low glycemic load” diet (i.e., one lowers blood sugar and insulin after meals) for the treatment of obesity and prevention of type 2 diabetes and heart disease. Described as an “obesity warrior” by Time Magazine, Dr. Ludwig has fought for fundamental policy changes to improve the food environment.
Dr. Ludwig is Principal Investigator on numerous grants from the National Institutes of Health, has published over 150 scientific articles. He has written 3 books for the public, including the #1 New York Times bestseller Always Hungry? Conquer Cravings, Retrain Your Fat Cells, and Lose Weight Permanently (Grand Central Publishing, 2016).