Vitamin D supplements seem to be all the rage for health and longevity these days. How do we know if we really need them? We ...

Medically reviewed by Soma Mandal, MD A vitamin D test measures your blood's vitamin D levels to see if they are too high or too low. Low vitamin D levels can increase your risk of bone disease and ...

The new vitamin D test, to be distributed from the Swiss-based company's Indianapolis hub, is the first such test using a ...

Roche has announced that the U.S. Food and Drug Administration has categorized its Ionify 25-Hydroxy Vitamin D total assay as ...

The days are shorter, you’re hibernating inside — and there’s a good chance you’re not getting enough vitamin D. About 40% of Americans aren’t. But in case you’re waiting for a sign from your body to ...

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 ...

Nearly a quarter of Americans are estimated to have a deficiency in vitamin D. Are you one of them? A 2022 study of National Health and Nutrition Examination Surveys (NHANES) data estimated that about ...