Vitamin and Mineral Supplement Fact Sheets
About this Fact Sheet Series
Health professionals and consumers need credible information to make thoughtful decisions about
eating a healthful diet and using vitamin and mineral supplements. To help guide those decisions,
registered dietitians at the Warren Grant Magnuson Clinical Center, the clinical research hospital at
the National Institutes of Health (NIH) in Bethesda, MD, developed a series of Fact Sheets in
conjunction with the Office of Dietary Supplements in the Office of the Director of NIH. These fact
sheets provide responsible information about the role of vitamins and minerals in health and disease.
Each Fact Sheet in this series received extensive review by recognized experts from the academic
and research communities.
The information is not intended to be a substitute for professional medical advice. It is important to
seek the advice of a physician about any medical condition or symptom. It is also important to seek
the advice of a physician, registered dietitian, pharmacist, or other qualified health professional about
the appropriateness of taking dietary supplements and their potential interactions with medications.
About ODS and Clinical Center
The Warren Grant Magnuson Clinical Center and Office of Dietary Supplements are components of the National Institutes of Health. The Clinical Center is the clinical research hospital for NIH. Through clinical research, physicians and scientists translate laboratory discoveries into better treatments, therapies and interventions to improve the nation's health.The mission of Office of Dietary Supplements is to strengthen knowledge and understanding of dietary supplements by evaluating scientific information, stimulating and supporting research, disseminating research results, and educating the public to foster an enhanced quality of life and health for the U.S. population.
The Clinical Nutrition Service and the ODS thank the expert scientific reviewers for their role in ensuring the scientific accuracy of the information discussed in these fact sheets, along with the Nutrition Education Subcommittee of the NIH, the U.S. Department of Agriculture Dietary Guidance Working Group, and the Department of Health and Human Services Nutrition Policy Board Committee on Dietary Guidance.
Reviewers for the fact sheets on iron, magnesium, selenium, and zinc | Vitamin A, D, and E | Vitamin B6, B12, and folate