Vitamin D is a daily supplement for many people, especially during the winter months. Health authorities are now warning that excessively high doses can be harmful.

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." That’s where supplements can really make a difference. But before you grab the first bottle you see, it’s ...

The Seeking Health Vitamin D3 + K2 daily supplement helps me out during winter's sunshine shortage. It's $25 on Amazon, but ...

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

Healthy adults under the age of 75 are unlikely to benefit from taking more than the daily intake of vitamin D recommended by the Institutes of Medicine (IOM) and do not require testing for vitamin D ...

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

Getting enough of the "sunshine vitamin" can be difficult in cold months.

Have you ever noticed that every vitamin seems to have more than one name and almost every mineral comes in many different forms? It can make things confusing when you're trying to maintain a healthy ...

Vitamin D plays a role in insulin function and inflammation, and low levels are common among people with prediabetes. But can ...