Experts warn that excessive vitamin D intake, often from supplements, can trigger serious kidney damage long before clear symptoms appear.

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

Medically reviewed by Jamie Johnson, RDN Key Takeaways Too much vitamin D can lead to harmful health effects, including high ...

Note: The U.S. Food and Drug Administration (FDA) does not approve supplements for safety or effectiveness. Talk to a healthcare professional about whether a supplement is the right fit for your ...

Vitamin D is an essential nutrient that supports immune function, and heart, bone, muscle and nerve health. Vitamin D can be made in your body from sunlight, but it is also found in salmon, egg yolks ...

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