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+1 202 204 7669

Scientific Resources


Click here for the CRN-I translation center with links articles relevant to international regulatory science for nutrients and food (dietary) supplements, proceedings from past CRN-I symposiums, and more—available in English, with translations in languages including: Arabic, Chinese, French, Japanese, Korean, Portuguese, Russian and Spanish.

CRN publications

Safety of Vitamin and Mineral Supplements


Vitamin & Mineral Safety 3rd Edition, Foreword and Methodology in Chinese, English, Portuguese and Spanish

Find out more...

Benefits of Nutritional Supplements

CRN-I Scientists

Learn more about CRN-I's scientific experts:

James C. Griffiths, Ph.D.
Vice President, Scientific & International Affairs

Dr. Griffiths has over 25 years of experience in the area of food safety and regulatory affairs. Prior to joining CRN, he spent five years with the United States Pharmacopoeia (USP) where he managed food and dietary supplement strategic initiatives, including those related to global food and dietary supplement alliances. He began his career as a regulatory review toxicologist at the U.S. Food and Drug Administration’s Center for Food Safety and Applied Nutrition.  His background also includes various scientific and regulatory positions at Burdock and Associates, the Flavor & Extract Manufacturers’ Association, International Specialty Products, Avon Products, and others. He has published extensively in peer-reviewed publications, and serves on the editorial board of the Journal of Excipients and Food Chemicals. He is currently serving a two-year term as president for both the Toxicology and Safety Division, Institute of Food Technologists, and the Society of Toxicology’s Food Safety Specialty Section. Dr. Griffiths holds a B.A. in biology from Columbia Union College in Maryland and earned his Ph.D. in Toxicology from Rutgers University & Robert Wood Johnson Medical School in New Jersey.

Duffy MacKay, N.D.
Vice President, Scientific & Regulatory Affairs

Dr. MacKay is a licensed Naturopathic Doctor and was a co-owner and practitioner in a family-owned New Hampshire complementary and alternative medicine private practice for seven years. In addition to his hands-on experience as a practitioner in the field of integrative medicine, he spent eight years working as a medical consultant for two companies in the dietary supplement industry, including four years as an executive with Nordic Naturals, where he was in charge of clinical research. He previously served as Technical Advisor for Thorne Research. Dr. MacKay has published articles in peer-reviewed journals, and serves on the Editorial Board of two peer-reviewed publications: the clinical journal Alternative Medicine Review and the official publication of the American Association of Naturopathic Physicians, Natural Medicine Journal.  Dr. MacKay earned his B.S. in Marine Sciences from the University of California, Santa Cruz and his N.D. from the National College of Naturopathic Medicine in Portland, Oregon. Dr. MacKay is licensed in the state of New Hampshire.

Annette Dickinson, Ph.D.
CRN Consultant

Dr. Dickinson is a consultant on dietary supplement regulation and food and nutrition policy, and is also an adjunct professor in the Department of Food Science and Nutrition at the University of Minnesota. She worked in Washington, D.C., for over 30 years for the Council for Responsible Nutrition (CRN), the leading trade association of the dietary supplement industry.  During that time, she was responsible for regulatory and scientific affairs for CRN and served as the association’s President prior to her retirement and move to Minnesota in 2005.   

Dr. Dickinson is the author of CRN’s publication The Benefits of Nutritional Supplements, a comprehensive review of the evidence demonstrating the health benefits of core nutritional supplements including multivitamins.  She was appointed in 2002 to serve a 3-year term on the U.S. Food and Drug Administration’s Food Advisory Committee.  She was appointed by President Clinton to the Commission on Dietary Supplement Labels (1995-1997) and has been a frequent witness before the U.S. Congress and at other public forums.  Her expertise includes the legal and technical aspects of marketing dietary supplements, including provisions relating to labeling, advertising, and good manufacturing practices.  She earned her Ph.D. in nutritional sciences and her M.S. in food sciences from the University of Maryland.