Too much vitamin D, or vitamin D toxicity, happens due to a buildup of calcium in the blood (hypercalcemia), which can be ...

Luke Coutinho mentions Vitamin D3 is a hormone that activates killer immune cells (NK, T-cells), calms dangerous inflammation ...

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 other severe conditions. Your vitamin D ...

Vitamin D is essential for many bodily processes, particularly the development of healthy bones. A 25-hydroxy vitamin D test can reveal whether the vitamin D levels in a person’s blood are within a ...

Should you get a blood test to see if you're deficient in vitamin D? It sounds like such a good idea, seeing as how most people don't get enough sunshine to make vitamin D themselves. And the tests ...

I thought constant exhaustion was just part of a busy life, despite sleeping well, exercising, and eating right. When nothing ...

Vitamin D deficiency can lead to bone softening and subsequent bone pain and fractures. Learn its causes, diagnosis, treatment, and prevention.

A daily vitamin D supplement can support bone strength, muscle function, and balance—especially in people who are vitamin D ...

Scientists are still untangling why the nutrient gap persists—and what it reveals about how women’s health is studied and treated.