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What foods provide iron? What affects iron absorption? Does pregnancy increase the need for iron? Read on to find the answers to these, and other, questions you have about iron. ... Details >

Office of Dietary Supplements, National Institutes of Health

The information about magnesium presented in this fact sheet is designed to help you make thoughtful decisions about eating a healthful diet and using vitamin and mineral supplements. ... Details >

Office of Dietary Supplements, National Institutes of Health

Selenium is a trace mineral that is essential to good health but required only in small amounts. Find out what foods are good sources of selenium.... Details >

Office of Dietary Supplements, National Institutes of Health

Answers basic questions about the antioxidant vitamin A, such as what it is, what foods provide it, and what intake is needed to provide the recommended dietary allowance.... Details >

Office of Dietary Supplements, National Institutes of Health

Search this alphabetical list for information on dietary supplements.... Details >

Office of Dietary Supplements, National Institutes of Health

People over 50 need more of some vitamins and minerals than younger adults do. Your doctor or a dietitian can tell you whether you need to change your diet or take vitamins or minerals.... Details >

National Institute on Aging Information Center

Learn about drugs, vitamins, and herbs, and how the drugs you take compare with others. Check interactions between two or more drugs and get detailed information regarding potentially harmful drug int... Details >

Commercial Entity--Follow the Resource URL for More Information

Learn how to select and use dietary supplements safely. The FDA does not approve dietary supplements before they are sold and can only take action against products that are not safe or products that m... Details >

FDA Office of Women’s Health

This fact sheet discusses the safety of herbal products marketed as "natural" products, the possible side effects of herbal products and interactions with prescription medicines.... Details >

American Academy of Family Physicians  

Also available in: Spanish 

Browse dietary supplements and herbal remedies to learn about their effectiveness, usual dosage, and drug interactions.... Details >

National Library of Medicine, National Institutes of Health