Dr. John McDougall is certified as an internist by the Board of Internal Medicine and the National Board of Medical Examiners. Dr. McDougall has cared for thousands of patients over almost 3 decades of medical practice and has run a highly successful live-in program for more than 20 years. Dr. McDougall has developed a nourishing , low-fat, starch-based diet that not only promotes a broad range of dramatic and lasting health benefits such as weight loss, but most importantly can also reverse serious illness, such as heart disease, without drugs.