Vitamin D is a secosteroid responsible for regulating calcium in the body, and may have other health effects as well, including reducing the risk of cancer and heart

A precursor to a certain kind of hormone involved in calcium regulation, vitamin D is produced when sunlight strikes the skin.

Vitamin D is a secosteroid created by the skin when exposed to sunlight, and is necessary for bone health.

There have been a number of studies that have suggested a possible link between vitamin D deficiency and weight gain, although the results are inconclusive.

Vitamin D deficiency in children can cause a serious bone deformity called rickets, which results in deformed, curved legs and other bone malformation.

Vitamin D is a type of secosteroid, closely related to steroids, a type of hormone necessary for certain bodily processes.

Vitamin D has become very popular over the last decade or so, due in part to several studies that suggest a possible anti-cancer effect.

A relatively safe supplement to take, there are not many danger vitamin D side effects from taking a normal dose.

Vitamin D is a hormone that plays a role in bone health.

The primary means of getting adequate vitamin D is via sunlight exposure, and so deficiencies are more frequent in areas that receive less sunlight.