According to new study taking a vitamin pill a day might extend your life. The findings, published in the journal Archives of Internal Medicine, add to the growing medical literature about the benefits of what is sometimes called the "sunshine vitamin" because it is produced by the skin in response to sunlight.

Taking vitamins and minerals did not reduce liver cancer death rates in a study conducted by the National Cancer Institute and the Chinese Academy of Medical Sciences.

Surprising findings by Queen’s researchers have shed new light on how the sunshine vitamin D – increasingly used to treat and prevent cancer and other diseases – is broken down by our bodies.

Fluoride damages children's teeth - new dentist advisory to cut back.

Many otherwise healthy children and adolescents have low vitamin D levels, which may put them at risk for bone diseases such as rickets. African American children, children above age nine and with low dietary vitamin D intake were the most likely to have low levels of vitamin D in their blood, according to researchers from The Children’s Hospital of Philadelphia.

African-American adolescent and teenage girls consume less vitamin A and D, calcium and magnesium compared to Caucasian girls, according to researchers at St. Joseph College, Wesleyan University and other institutions.

Utah authorities are investigating whether the chief financial officer of Usana Health Sciences Inc. misstated his accounting credentials, the latest in a series of credentials flaps for the vitamin maker, The Wall Street Journal reported Tuesday.

Researchers exploring the notion that certain nutrients might protect against pancreatic cancer found that lean individuals who got most of these nutrients from food were protected against developing cancer. The study also suggests this protective effect does not hold true if the nutrients come from vitamin supplements.

B12-an essential vitamin for land-dwelling animals, including humans-also turns out to be an essential ingredient for growing marine plants that are critical to the ocean food web and Earth's climate, scientists have found.

Imagine taking a vitamin for longevity! Not yet, but a Dartmouth discovery that a cousin of niacin prolongs lifespan in yeast brings the tantalizing possibility a step closer.

Taking excessive doses of a common vitamin in an attempt to defeat drug screening tests may send the user to the hospital-or worse.