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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 educate and train our Herbalife Independent Members 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, Herbalife Dietetic Advisory Board​ 

Luigi Gratton-image
Luigi Gratton

M.D., MPH – Vice President, Training Chairman, Herbalife 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, Herbalife Nutrition Advisory Board

Rocio Medina Badiano-image
Rocio Medina Badiano

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

Dana Ryan-image
Dana Ryan

Ph.D., MA, MBA – Director, Sports Performance, Nutrition and Education Chair, Herbalife Fitness Advisory Board

Gary Small-image
Gary Small

M.D. – Member, Herbalife Nutrition Advisory Board