For more than 30 years, Dr. Christopher Gardner—Rehnborg Farquhar professor of medicine at Stanford, and nutrition scientist—has studied what to consume and to avoid for optimal health, and how best to motivate individuals to achieve healthy dietary behaviors. He recently completed a two-year term serving on the U.S. Dietary Guidelines Advisory Committee and is the past chair of the American Heart Association’s Nutrition Committee. He has conducted and published dozens of human nutrition int...