Jeff Zachwieja

Dr. Jeff Zachwieja is a Senior Research Fellow at the Gatorade Sports Science Institute (GSSI) in Barrington, Illinois. He also contributes to the exercise biology research program in the PepsiCo Long Term Research Biology Innovation Laboratory in New Haven, Conn. His main area of interest is sports nutrition, primarily the metabolic response to exercise and the physiological effects of carbohydrate and protein ingestion before, during, and after exercise.

Dr. Zachwieja has research expertise in the use of stable isotopes to study whole body protein turnover, as well skeletal muscle protein synthesis rates. He has used exercise, bed rest and hormones as a model to understand the regulation of human skeletal muscle protein turnover. More recently he has applied so called "omics" technologies to gain a deeper understanding of the biological response to exercise.

Prior to joining PepsiCo, Dr. Zachwieja served as assistant professor and chief of the Exercise and Nutrition Program at the Pennington Biomedical Research Center in Baton Rouge, La. He earned his bachelor’s degree from the University of Illinois and master’s degree from Eastern Illinois University, both in Physical Education. In 1991 he received a doctorate in human bioenergetics from Ball State University. He completed a postdoctoral fellowship in the Division of Diabetes, Endocrinology and Metabolism at the Washington University School of Medicine in St. Louis, Mo., from 1991–1994. Dr. Zachwieja is an author or co-author on more than 50 peer-reviewed publications, has given numerous presentations around the world and is a fellow of the American College of Sports Medicine.