Some research shows that low vitamin D levels may affect joint pain related to some types of arthritis. However, the evidence is mixed, and more research is necessary to understand whether ...

Vitamin D toxicity can happen if you take too many vitamin D supplements. Even high levels that do not cause toxicity can be harmful. Share on Pinterest Sophia Hsin/Stocksy United Vitamin D toxicity ...

For adults, a level of vitamin D in the blood of 20 nanograms per milliliter (ng/mL) or above is generally considered adequate. Levels below 20 ng/mL are generally too low for adequate bone health and ...

For a while vitamin D was looking like a bona fide health elixir. It was recognized a century ago as the cure for rickets, a childhood disease that causes weak and deformed bones. Then, in the early ...