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Letter Vitamins

Vitamin is the generic term given to a set of key nutrients that the body needs to function normally. Some vitamins are given letter names. These letter vitamins are considered essential vitamins because the body cannot manufacture them on its own. Vitamins can either be consumed in food or taken in supplement form. Taking a vitamin supplement ensures your body has access to adequate quantities of each of the essential vitamins.

Vitamin A

Vitamin A is found in green, orange and yellow vegetables, along with some dairy products. It has multiple functions in the body, including immune system maintenance and night or low-light vision. The vitamin is used in the retina of the eye as part of a light-absorbing molecule that is necessary for seeing in dark conditions. It is also known to promote healthy skin.

Vitamin B Complex

The Vitamin B complex includes 8 different nutrients. It is estimated that up to 15 percent of adults have a deficiency of Vitamin B-12, which results in tiredness, mental fatigue, appetite changes and tingling sensations in the extremities. Deficiencies are most common in elderly people and those that have undergone weight-loss surgery.

Vitamins C and E

Vitamin C is one of the most well-known of the essential vitamins as it plays a vital role in the immune system. Vitamin E is necessary for the function of the nervous system. While a Vitamin C deficiency is somewhat rare, many people don’t get enough Vitamin E on a daily basis. Adding Vitamin E and C are advised for certain conditions or when illness is suspected.

Vitamin D

Vitamin D is needed for absorbing calcium which is necessary for bone health. The vitamin is most commonly consumed through food, though the body can produce small quantities of this vitamin when exposed to the sun. Those that live in certain climates or spend limited time outdoors are often deficient in vitamin D. Certain other groups like infants and diabetics may be at a higher risk as well.

Vitamin K

Vitamin K controls calcium binding in bone and other tissue. It is required for blood coagulation and a deficiency of the vitamin can lead to uncontrolled bleeding. The vitamin also controls calcium absorption in the bones.

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