Skip to main content
photo of David S. Ludwig, MD, PhD

David S. Ludwig, MD, PhD

Contributor

Dr. David Ludwig is an endocrinologist and researcher at Boston Children’s Hospital, professor of pediatrics at Harvard Medical School, and professor of nutrition at Harvard T.H. Chan School of Public Health. For more than 25 years, Dr. Ludwig has studied the effects of dietary composition on metabolism, body weight, and risk for chronic disease, with a special focus on low-carbohydrate and ketogenic diets.

He has made seminal contributions to development of the “carbohydrate-insulin model,” an alternative perspective on the cause and treatment of obesity. Described as an “obesity warrior” by TIME, Dr. Ludwig has fought for fundamental policy changes to improve the food environment. He has authored more than 250 scientific articles, and presently serves as an editor at The American Journal of Clinical Nutrition. Dr. Ludwig is author of the #1 New York Times bestseller Always Hungry? Conquer Cravings, Retrain Your Fat Cells, and Lose Weight Permanently.

Harvard Health Publishing Logo

Thanks for visiting. Don't miss your FREE 32-page gift worth $29.95.

PLUS, don’t miss out on your 25% off promo code.

Sign up to get tips for living a healthy lifestyle—You’ll discover powerful, research- backed strategies for health longevity drawn from Harvard Medical School experts—ways to eat for a longer life, build strength and flexibility to stay independent, protect your bones, heart, and brain as you age, and even cultivate the habits linked with “super-agers” who stay sharp and active well into their 80s and 90s—all delivered to your email box FREE.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of Living Longer, Living Well!.

Harvard Health Publishing Logo

Stay on top of latest health news from Harvard Medical School.

Plus, get a FREE copy of Living Longer, Living Well.