SUSAN M. KLEINER, PHD, RD, FACN, CNS, is a noted sports nutritionist and head of the consulting company High Performance Nutrition. She has counseled elite athletes in all sports and has worked with the Seattle Supersonics and the nutrition superstore GNC. The author of five books, including Power Eating, considered the most complete how-to sports-nutrition guide for athletes and trainers, she lives in Mercer Island, Washington.
JEFF O'CONNELL is senior writer for Muscle & Fitness and a contributor to Men's Fitness, Flex, and other magazines.
