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Our experts

Our doctors, trainers, dietitians, and advisory board members include internationally recognized experts and key opinion leaders. With specializations in nutrition, fitness and public health, they guide research that drives product innovation. They help educate and train our Herbalife Independent Distributors who then guide and support their customers to achieve their goals and live their best lives.

Global experts

Susan Bowerman-image
Susan Bowerman

​​M.S., R.D., CSSD, CSOWM, FAND – Senior Director, Worldwide Nutrition Education and Training
Vice Chair of the Dietetic Advisory Board​

Luigi Gratton-image
Luigi Gratton

​​M.D., MPH – Vice President, Training

​Chairman of the Nutrition Advisory Board​

David Heber-image
David Heber

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

John Heiss-image
John Heiss

​​Ph.D. – Vice President, Product Innovation

​Member, Nutrition Advisory Board​

Rocio Medina Badiano-image
Rocio Medina Badiano

​​M.D. – Cochairperson and Member, Nutrition Advisory Board​

Dana Ryan-image
Dana Ryan

​​Ph.D., M.A., MBA – Director, Sports Performance, Nutrition and Education

​Chair of the Fitness Advisory Board​

Gary Small-image
Gary Small

​​M.D. – Member, Nutrition Advisory Board​