About the Author
John Ivy, Ph.D., is a professor and head of the department of Kinesiology and Health Education at the University of Texas. Dr. Ivy is a world-renowned expert on the role of nutrition and exercise performance. He has published over 150 research papers and review articles.
Robert Portman, Ph.D., is president and director of research for PacificHealth Laboratories, a leading nutrition technology company. Dr. Portman has been a pioneer in developing nutritional products that can improve exercise performance and recovery.