Vitamin D is an essential nutrient for your immune system, heart health, and more—but most Americans don't get enough of it.

As resident nutrition and supplement expert at Which?, I've got the inside track on the vitamin D tips you need – and the ...

Eggs often steal the spotlight for vitamin D, yet plenty of other foods deliver even more of this essential nutrient. Vitamin ...

A daily magnesium supplement alters the bacteria that produce vitamin D in the colon and could influence colorectal cancer ...

Vitamin D is an important nutrient but one that people tend to lack during the winter months. Vitamin D helps keep bones strong and works to support the body's immune system. The main way people get ...

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

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

Medically reviewed by Erika Prouty, PharmD If you take vitamin D supplements to treat any deficiencies, it's essential to ...

Vitamin D is one of those nutrients that touches practically every inch of your body, from muscles and bones to nerves and the immune system. If you want to run strong, keeping an eye on your intake ...