2012 Rodale hardcover, 6th printing. William Davis (Undoctored: Why Health Care Has Failed You and How You Can Become Smarter Than Your Doctor). Every day, over 200 million Americans consume food products made of wheat. As a result, over 100 million of them experience some form of adverse health effect, ranging from minor rashes and high blood sugar to the unattractive stomach bulges that preventive cardiologist William Davis calls "wheat bellies." According to Davis, that excess fat has nothing to do with gluttony, sloth, or too much butter: It's due to the whole grain wraps we eat for lunch.