Vitamin D tests involve taking a blood sample to measure the vitamin D levels in your bloodstream. There are two forms of vitamin D in the blood: 25-hydroxy vitamin D, or calcidiol, and 1,25-dihydroxy ...

At-home vitamin D tests may provide insights into your health. When followed by a consultation with a doctor, it can be a first step in managing a common nutritional deficiency. Vitamin D helps you ...

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 ...

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 asked our chief medical officer, Sohaib Imitiaz, MD, to break it down. Q: ...

Experts haven’t agreed on a number that defines a low vitamin D level. For most healthy people, the Office of Dietary Supplements states that a vitamin D serum (blood) level below 20 nanograms per ...

If you live in certain parts of the country, you’ll need a lot more than sunlight to maintain adequate levels this season. Here’s what the experts recommend. Credit...Joyce Lee for The New York Times ...

WEEK, JUST IN TIME FOR THE 4TH OF JULY. WELL, IN THIS MORNING’S WOMAN’S DOCTOR, WE ALL GET VITAMIN D FROM BEING IN THE SUN, BUT HOW MUCH DO WOMEN REALLY NEED? WOMEN AGES 30 TO 70 NEED ABOUT 600 ...

Known as the sunshine vitamin, vitamin D is a fat-soluble vitamin necessary to support bone health, the immune system, and mental health. But there’s a catch: Roughly 50% of the population suffers ...

DOCTOR, WE ALL GET VITAMIN D FROM BEING IN THE SUN. BUT HOW MUCH DO WOMEN REALLY NEED? MERCY MEDICAL CENTER DOCTOR ERNESTINE WRIGHT JOINS US NOW WITH MORE INFORMATION. GOOD MORNING. THANK YOU FOR ...

Vitamin D is a fat-soluble vitamin that your body uses to absorb calcium, so it plays a key role in building and maintaining your bones. It’s also involved in immune and muscle function and has ...