National Institutes of Health
- The primary NIH organization for research on Dietary Supplements is the NIH Office of Dietary Supplements
Dietary supplements are vitamins, minerals, herbs, and many other products. They can come as pills, capsules, powders, drinks, and energy bars. Supplements do not have to go through the testing that drugs do.
Some supplements can play an important role in health. For example, calcium and vitamin D are important for keeping bones strong. Pregnant women can take the vitamin folic acid to prevent certain birth defects in their babies.
To take a supplement as safely as possible
NIH: National Institutes of Health Office of Dietary Supplements
References and abstracts from MEDLINE/PubMed (National Library of Medicine)