Doctors use the 25-hydroxy vitamin D test to monitor your vitamin D levels. Low levels can mean you need to spend more time outdoors or adjust your diet. But it can also occur with certain medical ...

Vitamin D supplements are linked to many health benefits, including decreasing the chance of heart disease, supporting immune function, and aiding weight loss. New research suggests that calcium and ...

Low vitamin D levels may be linked to joint pain, especially with chronic or severe deficiency. Evidence is mixed, so more research is necessary. Studies suggest vitamin D supplementation may improve ...

Everyone knows vitamin D-- it's the nutrient we get from the sun. Vitamin D is important for several bodily functions, the main ones being bone and muscle strength and immune function. Still, about 35 ...

Those who have trouble absorbing vitamin D are at risk for bone fractures, osteoporosis, and more. Having Crohn's or kidney disease and taking certain medications may inhibit vitamin D absorption. If ...

If the winter weather has you spending less time outside in the sun's rays, these foods can give you the vitamin D you need. Arielle Burton was an associate content manager on CNET's Performance ...

Dipa Kamdar does not work for, consult, own shares in or receive funding from any company or organization that would benefit from this article, and has disclosed no relevant affiliations beyond their ...