William Davis, MD is a well-known preventive cardiovascular doctor in the United States, who is famous for advocating the concept of "wheat-free diet". His book "Wheat Belly" reveals the harm of modern wheat to obesity, diabetes, inflammatory diseases and heart disease. He advocates the concept of wheat-free diet, and verifies the improvement effect of wheat-free diet through clinical cases. Clinical practice proves that patients can significantly improve their weight, blood sugar and arthritis after quitting wheat. By abstaining from wheat to improve health, Dr. Davis's research combines clinical medicine and nutrition science, and is committed to promoting public awareness of healthy eating and reshaping healthy lifestyles.