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Dietary Supplements

Dietary Supplement Fact Sheet: Carnitine

This site provides information on Carnitine, a dietary supplement, which is derived from an amino acid, found in nearly all cells of the body. Carnitine plays a critical role in energy production.

Review Date: January 30, 2013

NIH Office of Dietary Supplements - ODS

Dietary Supplement Fact Sheet: Iron

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.

Review Date: January 29, 2013

NIH Office of Dietary Supplements - ODS

Magnesium: Fact Sheet for Consumers

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.

Review Date: October 14, 2014

NIH Office of Dietary Supplements - ODS

Selenium: Fact Sheet for Consumers

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.

Review Date: October 14, 2014

NIH Office of Dietary Supplements - ODS

Time to Talk About Dietary Supplements: 5 Things Consumers Need to Know

If you are thinking about or are using a dietary supplement, here are five points to consider.

Review Date: January 29, 2013

NIH National Center for Complementary and Alternative Medicine - NCCAM

Vitamin A: Fact Sheet for Consumers

Answers basic questions about the antioxidant vitamin A, such as, what foods contain it, and the amount needed to provide the recommended dietary allowance.

Review Date: October 14, 2014

NIH Office of Dietary Supplements - ODS