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Susan Bowerman earned a B.S. in biology with distinction from the University of Colorado, and received her M.S. in food science and nutrition from Colorado State University. She is a registered dietitian, holds two board certifications from the Academy of Nutrition and Dietetics as a certified specialist in sports dietetics, and a certified specialist in obesity and weight management, and is a Fellow of the Academy.

Dana Ryan

PhD, M.A. – Director, Sport Performance and Education

Dana Ryan completed her doctorate in physical activity, nutrition and wellness at Arizona State University. Before joining Herbalife Nutrition, she taught exercise physiology and related courses at California State University Los Angeles (CSULA), and has conducted research at University of California Los Angeles (UCLA) on the impact of community-based nutrition and physical activity programs on heart disease risk.

Samantha Clayton

OLY, ISSA-CPT – Vice President, Worldwide Sports Performance and Fitness

Samantha Clayton represented Great Britain at the 2000 Sydney Olympics in both the 200m and the 4x100m relay events. She is a certified personal trainer with specialty certifications in group fitness, youth fitness programming, senior fitness and athletic conditioning. She has direct responsibility for all activities relating to exercise and fitness education for Herbalife Nutrition independent distributors and employees.

David Heber

M.D., PhD, FACP, FASN – Chairman, Herbalife Nutrition Institute

Dr. David Heber is the Chairman of the Herbalife Nutrition Institute (HNI), which promotes excellence in nutrition education for the public and scientific community and sponsors scientific symposia. The HNI Editorial Board is made up of key scientific opinion leaders from around the world in the fields of nutrition, exercise physiology, behavioral medicine and public health.

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