An official website of the United States government
Before sending a question, visitors are encouraged to check frequently asked questions or search the website. For specific dietary supplements, refer to Fact Sheets; for health conditions, visit MedlinePlus; and for regulatory information, contact the U.S. Food and Drug Administration. ODS provides general information but cannot offer personal medical advice or referrals.
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Before sending a question, you may want to look at our answers to frequently asked questions or search our website using the search box located at the upper right corner of this page.
- For specific dietary supplements, please see our list of Fact Sheets
For specific health conditions or diseases, please visit the MedlinePlus Database from the U.S. National Library of Medicine
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For regulatory and labeling information, please contact the U.S. Food and Drug Administration
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- Media Resources and Contacts
ODS provides general information you can trust about dietary supplement ingredients. We cannot provide personal medical advice or make referrals to healthcare providers. Many of your questions about dietary supplements are best answered by a physician or other qualified healthcare provider who is familiar with your medical history and situation.
Please use the form provided to email questions or suggestions about ODS's website. You may expect a response to your message within 7-10 business days. You must fill in every box below.
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Alternatively, you can write to us at this address. We can only respond to letters written in English. Office of Dietary Supplements National Institutes of Health 6705 Rockledge Dr., Room 730, MSC 7991 Bethesda, MD 20817 Email: [email protected]