Vitamin D overview for health professionals. Research health effects, dosing, sources, deficiency symptoms, side effects, and interactions here.

This collection of fact sheets and other resources from the NIH Office of Dietary Supplements (ODS) and other federal government sources provides information about dietary supplements and their …

Vitamin D is essential for good bone health, and it may help with muscle strength and protecting against cancer and type 2 diabetes. Ultraviolet light from the sun helps people form vitamin D in the skin. It is …

Fact sheets on dietary supplements and their ingredients. Provides the latest scientific information on dietary supplements in fact sheets, videos, and other federal resources. ODS co-funding program, …

Vitamin D helps maintain strong bones. Learn how much you need, good sources, deficiency symptoms, and health effects here.

Vitamin D is an important nutrient that helps keep bones healthy and allows muscles and nerves to work properly. Vitamin D also supports immune system function and is involved in a variety of cells within …

This collection of fact sheets and other resources from the NIH Office of Dietary Supplements (ODS) and other federal government sources provides information about dietary supplements and their …

Easy access to up-to-date, evidence-based information from ODS and other sources that will help you discuss dietary supplements with your patients, clients, colleagues, and students.

The effect of calcium plus vitamin D on risk for invasive cancer: results of the Women's Health Initiative (WHI) calcium plus vitamin D randomized clinical trial.

Vitamin D is a fat-soluble vitamin that is naturally present in very few foods, added to others, and available as a dietary supplement. It is also produced endogenously when ultraviolet rays from …