Registered Dietitian | Board Certified Specialist in Sports Dietetics (CSSD)
Registered Dietitian and Board Certified Sports Dietitian with 9 years of clinical and field experience in athlete nutrition.
Sarah Kim is a Registered Dietitian (RD) and Board Certified Specialist in Sports Dietetics (CSSD) — one of fewer than 1,000 practitioners in the United States to hold this specialized credential. She holds an M.S. in Nutritional Sciences from Penn State University and completed her dietetic internship at Johns Hopkins Hospital.
Over 9 years of clinical and field practice, Sarah has worked as the nutrition consultant for multiple NCAA Division I athletic programs, advising on macronutrient periodization, hydration protocols, body composition management, and supplement safety for competitive athletes. She has particular expertise in creatine supplementation science, protein timing research, and energy availability for female athletes.
At WinSportsLab, Sarah reviews and validates all nutrition and supplementation tools — including protein calculators, creatine dosage tools, hydration calculators, and recovery meal planners — ensuring every recommendation reflects the current Position Stands of the International Society of Sports Nutrition (ISSN) and the Academy of Nutrition and Dietetics (AND).