Katie Mark, MS, MPH, USAC, METS is a sports nutritionist, an R&D consultant, writer and competitive cyclist. She is skilled in investigating nutrition science research and applying the science in the real world. Katie owns On Your Mark Nutrition, LLC, located in Miami Beach, Florida, which is an Applied Sports Nutrition Science practice that combines physiology and nutrition for health and performance. The nutritional philosophy for optimal performance focuses on helping athletes achieve being fit and healthy by using nutritional strategies that target long-term training adaptations and long-term health. On Your Mark Nutrition specializes in individualized nutrition using Nutrition Periodization™, Metabolic Efficiency Training™, neuroprotective nutrition, safe and effective supplementation, and exercise physiology. Katie holds a Master of Science in Nutrition Communication from Tufts University Friedman School of Nutrition and a Master of Public Health from Tufts School of Medicine. Katie will be a registered dietitian-nutritionist by mid-2018.