Excerpted from Beating Diabetes: The First Complete Program Clinically Proven to Dramatically Improve Your Glucose Tolerance

By David M. Nathan, M.D. and Linda M. Delahanty, M.S., R.D.

Reprinted by permission of the McGraw-Hill Companies; © Copyright 2005 by President and Fellows of Harvard College. All Rights Reserved.

For more information or to purchase this book, follow this link:

Don’t you already know a lot about diets and exercise programs? Unless you’ve been living in a cave, cut off from all communication, you probably do. You have, like the rest of us, probably been flooded with advertisements and party talk about how to “eat healthy” and lose weight. Weight loss programs abound. In addi­tion to the potential health benefits of weight loss, its cosmetic appeal has spawned a multibillion-dollar weight loss industry that includes diet books and programs, food supplements, over-the-counter and prescription medications, stomach-restriction surgery, and plastic surgery. It also includes exercise books, tapes, videos, television shows, and equipment; Jazzercise; step and bicycle aer­obics; yoga exercise; combat yoga; sweat yoga; and Tae Bo. Indeed, health clubs have grown in parallel with the size of our waists.  Read More: