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Monday, February 24, 2014

What is nutritive value of vitamin B12;

Multi vitamins and mineral elements are essential for health and growth;

What is the benefit of vitamin B12?

Vitamin B12 also called cyanocobalamine is known for its role in the formation of red blood cells. 
1.    This vitamin is necessary for the growth and maintains nervous tissues. 
2.    It is essential for cell division, synthesis of DNA and RNA and maturation of red blood cells. 
3.    Vitamin B12 is involved in the formation of myelin, the white sheath that covers nerve fibers. 
4.    But the vitamin B12 is assimilated only in the presence of a protein, called intrinsic factor, which is secreted by the stomach.
5.    Inadequate secretion of gastric juice, especially in the elderly, may result in reducing the number of red blood cells.

Food sources of vitamin B12:

1.    This vitamin is found only in foods of animal origin, such as meat, especially liver, fish, seafood, eggs, dairy products, and also vitamin B12 is synthesized by bacteria in the gut.
2.    But it remains unclear to what extent the produced vitamin B12 can be absorbed and utilized by the body. 
3.    It should be noted that a strict vegetarian or macrobiotic diet leads to highly severe deficiency in vitamin B12.

Intake deficient of vitamin B12

1.    Deficiencies of vitamin B12 are rare and unusual, because the body’s needs are minimal, in order of a few micrograms per day and can be provided for many years by the reserves of the liver and from foods. 
2.    Deficiencies in vitamin B12 or reaching a mal-absorption associated with intestinal disorders, or a lack of secretion of gastric juice that is the intrinsic factor deficiency.
3.    Deficiency of vitamin B12 causes a specific disease, such as pernicious anemia, which results in a decrease in the number of red blood cells and can cause irreversible damage to the nerves and spinal cord.

Symptoms of deficiency’s disease of vitamin B12

1.    The manifestations of deficiency’s disease are paleness, general weakness in mental and physical.
2.    Numbness, more difficulty breathing, tingling, shooting pains in the limbs and gait disturbance. 
3.    The pernicious anemia can be fatal if not treated.

Useful supplement of vitamin B12

1.    Supplement of vitamin B12 may be needed in the cases of practicing a strict vegetarian diet.
2.     Elderly status, regular consumption of alcohol, taking laxatives, or antacid medications routinely, during pregnancy and lactation, but it must consult a doctor before taking vitamin supplements or minerals. 
3.    So remember in taking supplements, it is advisable to choose the ones that are a balanced and moderate amount of different B vitamins

Excess intake of vitamin B12

1.    Administration of vitamin B12 orally is well tolerated.
2.    As contrast to the intravenous injection at high doses that can cause skin disorders, but disappear at stopping injection.

Good combinations of vitamins

The action of vitamin B12 is enhanced when it is combined with other B vitamins, particularly vitamin B9.

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Multi vitamins and minerals

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