Susan M. Kleiner is the leading nutrition authority on eating for strength. Dr. Kleiner is an advisory board member for Shape, FitnessRx for Women and Oxygen magazines and is an internationally renowned author, speaker and columnist. Maggie Greenwood-Robinson is a leading health and medical writer in the United States. She has authored or co-authored more than 30 books on nutrition, exercise, weight loss, psychological health and other health-related issues, among them The Biggest Loser, a New York Times best-seller that is the official diet and fitness book for the hit reality show of the same name.