Jose Antonio, PhD, is a well-published research scientist in the sports nutrition field. He holds a BS in biology from the American University, an MS in exercise physiology from Kent State University, and a PhD in endocrinology and metabolism from the University of Texas Southwestern Medical Center. Antonio has years of experience in the supplement industry. His current position is senior manager for category development at Active Nutrition. He has also published articles in Men's Fitness, Flex, and Muscle and Fitness magazines. He and his wife, Karla, live in Deerfield Beach, Florida.
Jeffrey R. Stout, PhD, is the director of sport science for Nutricia. Considered one of a few experts in sports nutrition, he is widely published in scientific journals such as the Journal of Strength and Conditioning and has also published articles in Men's Fitness, Flex, and Muscle and Fitness magazines. He has been awarded the Young Investigator Award and the Editorial Excellence Award by the National Strength and Conditioning Association. He resides in Boca Raton, Florida.