Dr. Lee M Margolis began his nutrition research career as a uniformed dietitian in the US Army Medical Specialist Corps stationed in the Military Nutrition Division at the US Army Research Institute of Environmental Medicine (USARIEM). There he led field studies assessing the energy needs of Special Operations Forces during various training scenarios. After leaving the military, Dr. Margolis received his doctoral degree in Biochemical and Molecular Nutrition from Tufts University, where he studied under Roger Fielding in the Nutrition, Exercise, Physiology and Sarcopenia Laboratory. Dr. Margolis is currently a Nutrition Physiologist in the Military Nutrition Division at the USARIEM. His research program aims at determining nutrition and pharmacological interventions to optimize carbohydrate metabolism to enhance physical performance of modern Warfighters during and in recovery from sustained dietary inadequacy, heavy physical activity, and environmental exposure. Dr. Margolis investigates nutritional needs of Warfighters through assessment of whole-body metabolism and skeletal muscle molecular metabolic responses to exercise, nutritional manipulation, and exposure to environmental extremes. He is the past chair of the Energy and Macronutrient Metabolism Research Interest Section in the American Society for Nutrition, and an editorial board member of Medicine and Science in Sports and Exercise.