What is vitamin D3? Your body creates this vitamin naturally when exposed to sunlight. In the winter, however, we tend to stay inside more, making it harder to get the proper amount of D3. There are a ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." When you decide to spend money on a vitamin or supplement, you want to be sure it delivers. Which is why ...

Add Yahoo as a preferred source to see more of our stories on Google. When it comes to building strong, healthy bones, the emphasis on strength training has never been greater. Staying active is ...

Few nutrients seem to get as much attention as vitamin D does. Taking a supplement has been touted as an effective way to slow overall aging and protect against heart disease and cancer, although ...

Your skin tone may affect how much vitamin D you have in your blood. But taking vitamin D supplements does not change skin tone. Learn how vitamin D is linked to skin tone and skin health.

Vitamin D plays a vital role in overall health. It is a fat-soluble vitamin that the body can store and access over time. Knowing how long vitamin D stays in your system can help guide supplement ...