Vitamin D is the only vitamin that is also a hormone, and the only vitamin we don't have to consume from our diet. Vitamin D is normally produced in the skin through ultraviolet exposure of a derivative of cholesterol (7-dehydrochlesterol), which...

Vitamin D deficiency Definition Vitamin D deficiency exists when the concentration of 25-hydroxy-vitamin D (25-OH-D) in the blood serum occurs at 12 nanograms/milliliter (ng/ml) or less. This is one-half to one-fourth the amount normally present...

Vitamin D is an essential nutrient for optimal calcium homeostasis for the body. Vitamin D is a secosteroid hormone ( seco meaning cut ) with two...wavelengths of 290 and 315 nm. Upon entering the circulation, vitamin D (D without subscripts refers to either [D.sub.2] or...

VITAMIN C, also known as ascorbic acid, is the most publicized, well known among the various vitamins in the market. It's a water-soluble vitamin. Our bodies are unable to store it, and we must insure that we get adequate quantities in our diets...

Vitamin D acts in the body as both a vitamin and a hormone, exerting a powerful influence on maintaining bone...others). There is also evidence to suggest that more optimal vitamin D levels can reduce the risk of multiple sclerosis by affecting...

Vitamin D first caught my eye in 2003 when I noticed it had been...an FDA order. At the time, I thought I would look into vitamin D toxicity as a possible cause, although I cannot recall...this problem. That is why I wrote, "PDA's Crackdown on Vitamin D Is Troubling,"1 two years ago. When I researched ...

VITAMIN E has never been so popular among the health-conscious public as it is today. Distinguishing...the world. It is time that the consumers be properly informed about the great knowledge behind Vitamin E. We believe that a deeper understanding on Vitamin E will definitely further encourage them to take ...

Vitamin [B.sub.12] (cobalamin) plays an important role in DNA synthesis...diagnosis and prompt treatment. The true prevalence of vitamin [B.sub.12] deficiency in the general population is unknown...of adults older than 65 years had laboratory evidence of vitamin [B.sub.12] deficiency. The nearly ubiquitous ...

Vitamin C holds promise for preventing high blood pressure, cataracts...skeptical. Today, research findings suggest he was right. Vitamin C may indeed play a significant role in preventing deadly and debilitating diseases. Vitamin C Against Cancer. A recent review of almost 100 studies...

Vitamin D is best known for building strong bones, but it may have...studies involving nearly 60,000 people, those who took vitamin D supplements had a 7 percent reduction in mortality from all causes compared with those who didn't take the vitamin. The numbers improved slightly for people who took ...