Dr. Ian Smith is the author of 29 books including the #1 New York Times bestselling books SHRED: THE REVOLUTIONARY DIET, SUPER SHRED: The Big Results Diet, BLAST THE SUGAR OUT, The Clean 20, THE ANCIENT NINE, CLEAN & LEAN, FAST BURN with millions of copies in print. His newest book, THE LAST 15, was released in January of 2026.
Dr. Smith’s Chicago-based detective novels, the Ashe Cayne series, include The Unspoken, Wolf Point, The Overnights, and Eagle Rock, have been picked up for an upcoming television series. His novel The Ancient Nine, based on his experiences in one of Harvard’s secret societies has also been optioned for television.
He served as the solo host of the nationally syndicated Emmy award-winning television show THE DOCTORS and is a longtime medical contributor to The Rachael Ray Show. His podcast, Conversations with Dr. Ian Smith, is popular and informative.
He served as the medical/diet expert for six seasons on VH1's highly rated Celebrity Fit Club. He is the creator and founder of the national health initiatives The 50 Million Pound Challenge and The Makeover Mile. Dr. Smith is the former medical correspondent for NBC News Network and NewsChannel 4 in New York, where he filed reports for NBC Nightly News and The Today Show, as well as WNBC's various news broadcasts. He has appeared extensively on numerous broadcasts, including The Oprah Winfrey Show, The View, Steve Harvey Show, The Talk, Anderson Cooper 360, CNN, MSNBC, HLN, and many more. He has written for various publications, including Time, Newsweek, Men's Fitness, and the New York Daily News. He has been featured in several other publications, including People, Redbook, Details Magazine, Essence, Ebony, Cosmopolitan, and Black Enterprise.
A highly sought-after speaker, Dr. Smith's work has been honored by several organizations, including the National Academy of Television Arts & Sciences, for his coverage of the momentous events of September 11th, 2001. He is also very active in charitable causes. In addition, Dr. Smith has served on the boards of the American Council on Exercise, the New York Mission Society, the Prevent Cancer Foundation, The New York Council for the Humanities, and The Maya Angelou Center for Health Equity. Smith was honored to be a member of President Obama’s health endeavor, the President’s Council on Fitness, Health, and Nutrition.
Dr. Smith graduated from Harvard College with an AB and received a master's in science education from Teachers College of Columbia University. He completed his first two years of medical school at Dartmouth Medical School and earned his medical degree from the University of Chicago Pritzker School of Medicine.
