Vitamin D appears to influence our immune health, too. Studies have found a link between low vitamin D levels and incidence ...

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

Many companies offer tests, which may involve blood, urine or saliva collection, and can be very expensive. The results may ...

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

A growing body of research suggests that vitamin D may play a subtler role in mood than previously assumed, becoming most ...

Doctors say the ideal form of vitamin D comes from the skin when it absorbs sunlight. A dietitian expert weighs-in on the effectiveness on vitamin supplements.