Marisa Michael, MSc, RDN, CSSD is a registered dietitian in the United States. She holds a master’s degree in sports nutrition from the University of Stirling, the IOC Diploma in Sports Nutrition, and is a board certified specialist in sports dietetics. She holds a variety of fitness certifications. Marisa is the author and co-author of peer-reviewed scientific articles, as well as numerous freelance articles for Climbing Magazine and the book Nutrition for Climbers: Fuel for the Send. Marisa owns a private practice where she helps athletes and active people optimize nutrition for sports performance and supports those recovering from disordered eating. She also serves in the USA Climbing Medical Committee.