Product Safety Consultant
& Author



James T. MacGregor, PhD

James T. MacGregor, Ph.D., D.A.B.T., is a consultant on scientific and regulatory issues related to product development, safety, and regulation. Previously he was Director of the Office of Testing and Research (OTR) at the FDA Center for Drug Evaluation and Research (1997-2001); Director of the Washington Office of the National Center for Toxicological Research (2001-2004); Director of the Toxicology and Metabolism Laboratory at SRI International (formerly the Stanford Research Institute) in Menlo Park, CA (1990-97); and Manager of the Food Safety Research Unit at the USDA Western Regional Research Center, Berkeley, California (1972 –1988). 

He holds a Ph.D. in toxicology from the University of Rochester School of Medicine (1971), had postdoctoral training at the University of California Medical Center at San Francisco (1970-72), and has held academic appointments at the Universityof California, Berkeleyand the University of San Francisco.  

He is a Diplomate of the American Board of Toxicology, has been President and Treasurer of the Environmental Mutagen Society, President of the Regulatory and Safety Evaluation Specialty Section of the Society of Toxicology, President of the Association of Government Toxicologists, President of the Genetic and Environmental Toxicology Assn. of Northern California, has served on the editorial boards of Environmental and Molecular Mutagenesis, Mutation Research, and Mutagenesis, and has served on numerous national and international expert toxicology groups and advisory boards. 

He has published more than 320 journal articles, abstracts, and book chapters in the fields of genetic and general toxicology, and is the recipient of the EMS Alexander Hollaender Award, the GTA Excellence in Science Award, and the FDA and CDER Distinguished Career Service Awards in recognition of his contributions to the field. 

He has recently published a book, entitled: A Natural Mistake: Why Natural and organic products are not as safe you think, describing why the mistaken assumption that natural and organic products are safer and more healthful than those produced using pesticides and food additives, and has led to weak safety regulations and often unrecognized serious health issues.

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