Too much vitamin D, or vitamin D toxicity, happens due to a buildup of calcium in the blood (hypercalcemia), which can be harmful. Here's what you need to know.

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

Vitamin D is essential, but getting too much, especially from supplements, can have serious side effects. Too much vitamin D can cause dangerously high calcium levels in the blood, which can lead to ...

When it comes to a healthy diet — especially for women, and especially after menopause — nutritionists, doctors, everybody it seems, will tell you: calcium, calcium, calcium. Federal health officials ...