Obesity and Diabetes Expert

 Osama Hamdy, MD, PhD

The Diabetes Breakthrough transforms Joslin’s clinic based Why WAIT™ weight loss program into an easy-to follow, at-home guide for anyone diagnosed with or at risk of the disease.

"If you’re looking for a quick guide to eating and exercising, this isn’t the book for you. But if you want to understand your disease as you try to get better, The Diabetes Breakthrough has a lot to offer"

Successful long-term weight loss can only be achieved through a multidiciplinary approach that includes dietary intervention, exercise plan, behavioral modifications and medication adjustment. Participants in the Why WAIT program at the Joslin Diabetes Center lost an average of 24 lbs in 12 weeks and maintained -6.4% weight loss at 5 years. More than 50% maintained an average of -9% weight loss for 5 years.

Why WAIT Program

For Patients with Diabetes & Prediabetes


Dr. Hamdy is the founder of the Weight Achievement and Intensive Treatment (Why WAIT) Program at the Joslin Diabetes Center in Boston.


For Medical Professionals


Dr. Hamdy is the author of the Medscape obesity chapter


For Medical Students


Dr. Hamdy is the author of the obesity chapters of the Cecil Textbook of Medicine and Joslin's Diabetes Deskbook. 

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      Copyright Osama Hamdy, MD, PhD