. Robert Portman is and exercise scientist and coauthor of three books, Nutrient Timing The Performance Zone Hardwired for Fitness and has authored hundreds of articles on how nutrition can improve fitness, health and athletic performance. Dr...
. Robert Portman is and exercise scientist and coauthor of three books, Nutrient Timing The Performance Zone Hardwired for Fitness and has authored hundreds of articles on how nutrition can improve fitness, health and athletic performance. Dr...
