Roger  Clemens

Roger Clemens, DrPH

Adjunct Professor, Pharmacology & Pharmaceutical Sciences
Co-Founder/EVP, PolyScience Consulting

Regulatory and Quality SciencesCurriculum Vitae

Research Topics

  1. Pediatric nutrition
  2. Probiotics
  3. Prebiotics
  4. Functional foods
  5. Analytical methodology applications
  6. Food safety and toxicology
  7. Food processing

Contact Information


Doctor of Public Health, UCLA, Nutrition/Biological Chemistry (1978)
Master of Public Health, UCLA, Nutrition (1973)
Bachelor of Arts, UCLA, Bacteriology (1972)

Roger Clemens

Research Interest

Pediatric nutrition, probiotics, prebiotics, functional foods, analytical methodology applications, food safety and toxicology, food processing


Dr. Roger A. Clemens is co-founder and executive vice president of scientific operations for PolyScience Consulting. He is part-time faculty within the USC Regulatory Science program where he enjoys an adjunct appointment as Professor of Pharmacology and Pharmaceutical Sciences within USC’s School of Pharmacy, International Center for Regulatory Science. He served as Scientific Advisor for Nestlé USA for more than 21 years and then Chief Scientific Officer for Horn for about a decade.

Dr. Clemens has published more than 50 original manuscripts in nutrition and food science, participated in more than 300 invited domestic and international lectures, and served as an expert panel member for the food industry, scientific organizations, trade associations and regulatory agencies in the United States, Canada and Europe.

Dr. Clemens was a member of the USDA 2010 Dietary Guidelines Advisory Committee, and is a third-term member of the US Pharmacopeia Food Ingredient Expert Committee.

Dr. Clemens is a past president of the Institute of Food Technologists (IFT) and former member of the IFT Board of Directors. As a spokesperson for IFT and the American Society for Nutrition (ASN), Dr. Clemens has been cited and interviewed by more than 500 domestic and international health journalists, and has appeared on numerous televised (e.g., Good Morning America, Good Morning London, CNN, CBS 48 Hours, TakePartLive, FoxNews) discussions on contemporary health, nutrition and food safety issues.

Selected Projects/Publications

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