Dr. Roger A. Clemens is co-founder and executive vice president of PolyScience Consulting. He is part-time faculty within the USC International Center for Regulatory Science program where he enjoys an adjunct appointment as Professor of Pharmacology and Pharmaceutical Sciences within the USC School of Pharmacy. He also developed and facilitates graduate courses in the Global Medicine program within the USC School of Medicine. He served as Scientific Advisor for Nestlé USA for more than 21 years and then consultant to and 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 is a past president of the Institute of Food Technologists (IFT) and former member of the IFT Board of Directors. He served on numerous IFT expert panels, including Functional Foods, and Making Decisions about the Risks of Chemicals in Foods with Limited
Scientific Information. He co-founded, established and contributes to a Food, Medicine and Health column published monthly in Food Technology since 2004. As a spokesperson for IFT, Dr. Clemens has been cited and interviewed by more than 500 domestic and international health journalists, and has appeared on numerous televised discussions on contemporary health, nutrition and food safety issues.
In 2017, Dr. Clemens will launch a new column in Nutrition Today that addresses the regulatory status, safety, and functional properties of food ingredients. Dr. Clemens continues to serve as a spokesperson on food, nutrition and health issues for the American Society for Nutrition (ASN). He chaired the Public Information Committee, served as a member of ASN’s Finance Committee, ASN’s Medical Nutrition Council, and ASN’s Membership Committee.
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, a Certified Food Scientist, is a professional member of and Fellow in IFT. Dr. Clemens received many awards for his leadership in IFT, the Academy of Nutrition and Dietetics, and in local universities. He is a Fellow in the American College of Nutrition, a Fellow in the International Academy of Food Science and Technology, and a Fellow in the Marilyn Magaram Center for Food Science, Nutrition and Dietetics. He is an active member in the Society of Toxicology and the American College of Toxicology. He is an associate editor of the Journal of Food Science, and an editorial board member for Food Chemical Toxicology and Nature Partner Journal Science of Food.
Dr. Clemens received an AB in Bacteriology, a MPH in Nutrition, and a DrPH in Public Health Nutrition and Biological Chemistry from the University of California, Los Angeles.