Gretchen Vannice, M.S., R.D.N., Scientific and Health Communications Consultant

Gretchen Vannice, M.S., R.D.N., is a Scientific and Health Communications Consultant with the NIH Office of Dietary Supplements (ODS). She is primarily responsible for writing and updating the ODS dietary supplement fact sheets for health professionals and consumers.

Before joining ODS in December 2022, Ms. Vannice was a research and regulatory consultant for the dietary supplement industry. As the Director of Nutrition Education, Research, and Training for two omega-3 fatty acid (fish oil) manufacturers, she coordinated clinical research with universities and developed education and training materials. Previously, as a Clinical Health Educator at Kaiser Permanente Santa Clara Medical Center, she developed curricula, reviewed nutrition program content, managed health education programs, and implemented the first herbal education program for health professionals. Ms. Vannice was an executive board member during the formation of the Academy of Nutrition and Dietetics (AND) Dietetic Practice Group on Dietitians in Integrative and Functional Medicine. She also was founding chairperson of the Science Committee for the Global Organization of EPA and DHA Omega-3s.

Ms. Vannice has expertise in dietary lipids and dietary supplements. She was lead author of the position paper on dietary fats for the AND and authored a chapter on nutrition therapy for psychiatric conditions in Krause’s Food and Nutrition Care Process, 13th edition. She is a registered dietitian nutritionist and a member of the AND as well as the American Society for Nutrition.

Ms. Vannice received her B.S. and B.A. in nutrition and dietetics from Oregon State University and her M.S. in nutrition science from San Jose State University. She completed her thesis research at Stanford University School of Medicine investigating the relationship between magnesium and bone mineral acquisition in ethnically diverse children and teens.