Luc van Loon is a Professor of Physiology of Exercise and Nutrition at the Department of Human Biology at Maastricht University Medical Centre+. Luc has an international research standing in the area of skeletal muscle metabolism. Current research in his laboratory focuses on the skeletal muscle adaptive response to exercise, and the impact of nutrition and exercise interventions to modulate muscle metabolism in health and disease. The main research interests of his laboratory include exercise metabolism, sports nutrition, adaptation to endurance and resistance type exercise, and the use of physical activity and/or dietary interventions to improve health in chronic metabolic disease and with ageing. The latter are investigated on a whole-body, tissue, and cellular level, with skeletal muscle as the main tissue of interest. The research group has authored more than 400 original, peer-reviewed research and review articles. Luc is a member of the Editorial Board of the International Journal of Sport Nutrition and Exercise Metabolism (IJSNEM), Amino Acids (AA), and the European Journal of Sport Science (EJSS) and the Scientific Board of the European College of Sport Science (ECSS). To support the use of stable isotopes in biomedical research, Luc is also scientific coordinator of the Stable Isotope Research Centre (SIRC) at Maastricht University Medical Centre+.