The Distinguished Lecture Series in Sports Medicine at Hope College will focus on nutritional supplements on Tuesday, Nov. 4, at 7 p.m. in the Maas Center.

The public is invited. Admission is free.

Dr. Craig Horswill of the Gatorade Sports Science Institute of Barrington, Ill., will present "Risks and Benefits of Nutritional Supplementation in Athletes."

Horswill will identify current dietary supplements - nutritional and non-nutritional - that receive research focus and consumer attention. The overview will provide the theory, efficacy and safety of specific supplements that are claimed to enhance endurance, muscle power or speed recovery. The talk will also address examples of supplements that supposedly alter body composition by increasing muscle mass or decreasing body fat.

Horswill is the principal scientist with the Gatorade Exercise Physiology Laboratory. He has published and presented widely in both the United States and internationally on topics related to hydration, sports nutrition and performance enhancement in athletes. He holds a Ph.D. in exercise physiology from the University of Illinois.

The Distinguished Lecture Series in Sports Medicine is designed for health care professionals with an interest in physically active patients, and is intended for students, educators and clinicians alike. It is co-sponsored by Holland Community Hospital, GRSportsCenter and the college.