Dr. Floris C. Wardenaar has been an assistant professor at the College of Health Solutions at Arizona State University (ASU) since 2017, and he was promoted to associate professor in 2025. Before coming to ASU, he worked for the Dutch Olympic Committee as a sports dietitian during five Olympic Games from 2008-2016, of which he was the team lead of the nutrition team during the last 3 years in preparation for the Rio de Janeiro games in Brazil. During this period he also obtained his PhD at Wageningen University in the Netherlands. Aside from investigating hydration self-assessment in active populations and validating simple and practical methods, that sports health professionals and their athletes can use, his current research focuses on nutritional supplementation behavior in athletes, as well as arriving at a better understanding of gastrointestinal complaints in active populations. Over the last few years, his research has covered the assessment of athletes' dietary intake, athlete sports nutrition knowledge, and the prevalence of GI complaints in athletic populations. He has a keen interest in using simple sensors and measurements as part of field testing. Dr. Wardenaar is an active member of ACSM, APSDA, the Dutch Association for Sports Dietetics, the Dutch Dietetic Association, and he currently serves as vice-president of PINES, a global organization for Professionals in Nutrition for Exercise and Sport.