Casey Carlgren is an O2X On-Site Human Performance Specialist specializing in Nutrition for the City of Berkeley Public Safety. As a Registered Dietitian, he leverages his expertise to help tactical professionals optimize their health and performance through tailored nutrition strategies. Casey is passionate about empowering individuals to achieve their goals by integrating evidence-based nutritional guidance with a practical, sustainable approach.Before joining O2X, Casey built a diverse foundation of experience in both clinical and sports nutrition. He worked at EXOS in Frisco, TX, where he supported collegiate football athletes preparing for the NFL combine, as well as professional NFL players. Following this, Casey served as a consultant dietitian with Nutritious Lifestyles, providing clinical services and quality assurance audits for long-term care and skilled nursing facilities in the Dallas-Fort Worth area. His journey in nutrition began after serving in the Marine Corps, where he provided security at Camp David and the U.S. embassy in Yemen.Casey holds a Bachelor’s degree in Dietetics from Iowa State University, a Master’s in Nutrition and Dietetics from the University of Kansas Medical Center, and advanced graduate training in sports nutrition from Florida State University, where he also completed his dietetic internship. A lifelong athlete with experience in track and field, wrestling, CrossFit, powerlifting, and ultra-endurance racing, Casey combines his personal passion for fitness with his professional expertise. In his free time, he enjoys gardening, blending his love for food, nutrition, and health into a fulfilling lifestyle.