Catherine Shanahan, M.D. is a board-certified family physician. She trained in biochemistry and genetics at Cornell University before attending Robert Wood Johnson Medical School. She practiced medicine in Hawaii for a decade, where she studied ethnobotany, as well as the culinary habits of her healthiest patients. Her books include Deep Nutrition and The Fatburn Factor. She currently runs a metabolic health clinic in Denver, Colorado and serves as the Director of the Los Angeles Lakers PRO Nutrition Program.