Ivy, Robert Portman and John
Robert Portman, Ph.D., is managing partner at Signal Nutrition, LLC, a nutrition technology research and development company, and founder of PacificHealth Laboratories. He is co-author of Nutrient Timing and The Performance Zone. John Ivy, Ph.D., is Head of the Department of Kinesiology at the University of Texas, and is one of the preeminent physiologists in the world. Ivy has pioneered our understanding of how muscles work and how nutritional supplements can improve muscle performance. He is co-author of Nutrient Timing and The Performance Zone.