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Vitamins and Minerals Health Channel

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Vitamins

Definition

Vitamins are a group of substances essential for normal cell function, growth and development.

There are 13 essential vitamins. That means they are needed for the body to function. They are:

Vitamins are grouped into two categories:

  • Fat-soluble vitamins are stored in the body's fatty tissue.
  • Water-soluble vitamins must be used by the body right away. Any left over water-soluble vitamins leave the body through the urine. Vitamin B12 is the only water-soluble vitamin that can be stored in the liver for many years.

Function

Each vitamin has specific functions. You can develop health problems (deficiency disease) if you do not get enough of a particular vitamin.

Vitamin A helps in the formation and maintenance of healthy teeth, bones, soft tissue, mucous membranes, and skin.

Vitamin B6 is also known as pyridoxine. The more protein a person eats, the more vitamin B6 is needed to help the body use the protein. Vitamin B6 helps form red blood cells and maintain brain function, among other things.

Vitamin B12, like the other B vitamins, is important for metabolism. It also helps form red blood cells and maintain the central nervous system.

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Vitamin C (3 Images) (Doctor-Reviewed information)
Vitamin C is a water-soluble vitamin that is necessary for normal growth and development. Water-soluble vitamins dissolve in water. The body cannot store them. Leftover amounts of the vitamin leave the body through the urine. That means you need a continuous supply of such vitamins in your diet. Reviewer: William McGee, M.D., M.H.A., Assistant Professor of Medicine and Surgery, Tufts University School of Medicine, Boston, MA, and Chairman, Nutrition Committee, Baystate Medical Center, Springfield, MA. Review provided by VeriMed Healthcare Network.Date: 01/02/2007
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Vitamin K (2 Images) (Doctor-Reviewed information)
Vitamin K is a fat-soluble vitamin that plays an important role in blood clotting. The body can store fat-soluble vitamins in fatty tissue. Reviewer: William McGee, M.D., M.H.A., Assistant Professor of Medicine and Surgery, Tufts University School of Medicine, Boston, MA, and Chairman, Nutrition Committee, Baystate Medical Center, Springfield, MA. Review provided by VeriMed Healthcare Network.Date: 01/02/2007
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Vitamin A (2 Images) (Doctor-Reviewed information)
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Vitamin E (2 Images) (Doctor-Reviewed information)
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Vitamin B12 (2 Images) (Doctor-Reviewed information)
Vitamin B12 is a water-soluble vitamin. Water-soluble vitamins dissolve in water. After the body uses these vitamins, leftover amounts leave the body through the urine. Typically, water-soluble vitamins can not be stored by the body. Vitamin B12 is special, because the body can store it for years in the liver. Because of this, a vitamin B12 deficience is very rare. Reviewer: A.D.A.M. Editorial Team: Greg Juhn, M.T.P.W., David R. Eltz, Kelli A. Stacy. Previously reviewed by William McGee, M.D., M.H.A., Assistant Professor of Medicine and Surgery, Tufts University School of Medicine, Boston, MA, and Chairman, Nutrition Committee, Baystate Medical Center, Springfield, MA. Review provided by VeriMed Healthcare Network. (1/2/2007)Date: 05/03/2007
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Folic acid (folate) (2 Images) (Doctor-Reviewed information)
Folic acid is a type of B vitamin. It is water-soluble, which means it cannot be stored in the body. Water-soluble vitamins dissolve in water. Leftover amounts of the vitamin leave the body through the urine. That means you need a continuous supply of the vitamin in your diet. Reviewer: William McGee, M.D., M.H.A., Assistant Professor of Medicine and Surgery, Tufts University School of Medicine, Boston, MA, and Chairman, Nutrition Committee, Baystate Medical Center, Springfield, MA. Review provided by VeriMed Healthcare Network.Date: 01/02/2007
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Thiamine (2 Images) (Doctor-Reviewed information)
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Riboflavin (2 Images) (Doctor-Reviewed information)
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Multiple vitamin overdose (Doctor-Reviewed information)
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Chromium in diet (Doctor-Reviewed information)
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Magnesium in diet (Doctor-Reviewed information)
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Potassium in diet (Doctor-Reviewed information)
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Balanced diet (3 Images) (Doctor-Reviewed information)
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Zinc in diet (Doctor-Reviewed information)
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25-hydroxy vitamin D test (1 Image) (Doctor-Reviewed information)
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More D-Tails on Vitamin D. in The Diet Dish - 34 days ago
One study suggests that breastfeeding women get 4,000 IU of Vitamin D daily. Vitamin D2 is 1/3 less potent than D3, so look for D3 in supplement form or fo... Email  |  Save

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