"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Do you ever feel like you take an endless supply of vitamins and supplements but are potentially not ...

In the summertime, vitamin D levels might not be much of a concern for many runners, considering the time we spend exercising ...

Vitamin D is an essential nutrient for your immune system, heart health, and more—but most Americans don't get enough of it. Here are several drinks you can try to boost your intake.

The results showed that nearly 90 percent of participants needed Vitamin D supplements to reach this goal. Many of them required doses far higher than the usual recommendation. Even with these higher ...

Like other vitamins, vitamin D is a substance needed for health but only in tiny amounts. Unlike other vitamins, it doesn't occur naturally in many foods (except seafood, mushrooms, and egg yolks), ...

Historically, 400 IU (10 ug) of vitamin D was recommended for better health because it closely approximated the amount of vitamin D in a teaspoonful of cod liver oil. However, 800 to 1,000 IU is the ...

Foods, including certain fish, egg yolks, and mushrooms, contain vitamin D. Changing your diet may help reduce or prevent vitamin D deficiency. The daily value (DV) for vitamin D is 600-800 IU (15-20 ...

More than 40 percent of the U.S. population is estimated to have a vitamin D deficiency, especially in regions with less year-round sun exposure. The vitamin, which is vital for the body’s absorption ...

One study found that vitamin D may have anticancer effects, which could help reduce colorectal cancer risk. Another piece of ...