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Luigi Gratton speaking on stage at Extravaganza 2024 in Mexico

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

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Luigi Gratton-image

Luigi Gratton

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

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David Heber-image

David Heber

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

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John Heiss-image

John Heiss

Ph.D. – Vice President, Product Innovation Member, Herbalife Nutrition Advisory Board

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Rocio Medina Badiano-image

Rocio Medina Badiano

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

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Dana Ryan-image

Dana Ryan

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

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Gary Small-image

Gary Small

M.D. – Member, Herbalife Nutrition Advisory Board

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