Vitamin D is vital for immunity, brain health, strong bones, and overall well-being, but taking in too much from supplements ...

Vitamin D is essential for bone and immune health, but too much can be dangerous. Experts warn that excess supplementation ...

Taking too much vitamin D can cause serious side effects. Learn the signs, why you might feel weird after taking it, and when to talk to your healthcare provider.

Vitamin D helps your body absorb calcium, supports bone health, and plays a role in immunity, muscle function, and more. While most people can get enough from sunlight, food, or supplements, some may ...

Tuna is among the many types of fish that are hearty sources of vitamin D. In fact, a serving can provide over 5% of your ...

NATIONAL HARBOR, Maryland — Though evidence is mounting that low vitamin D levels may increase risk for the development and perhaps progression of multiple sclerosis, clinicians still do not have ...

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 ...

Nearly a quarter of Americans are estimated to have a vitamin D deficiency. Why is that? A 2022 study of National Health and Nutrition Examination Surveys (NHANES) data estimated that about 22% of ...