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Syeda Zuleqa, Sumayya Sajida* and Fariya Azeem


Vitamin B12, also called cobalamine, is a water soluble vitamin that is involved in the metabolism of every cell of human body. It is a co-factor in DNA synthesis, and in both fatty acid and amino acid metabolism. It is particularly important in the normal functioning of the nervous system via its role in the synthesis of myelin, and in the maturation of red blood cells. The main sources of vitamin B-12 are bacteria archaea, animals, plants, algae, and fortified food. Good dietary sources of vitamin B-12 include beef, pork, ham, poultry, lamb, fish, dairy products such as milk, cheese, yougat and eggs etc., supplements can be taken orally or in a nasal spray. vegans can take supplements to avoid deficiency, as the vegan diet remove the meat products that provide vitamin B-12 naturally. the main function of vitamin B-12 include protects human heart, bones, prevents nerve damage improve mood and outlook, protects brain health, keeps you look good and feel young. vitamin B-12 is taken by mouth, skin and injection to prevent and treat its deficiency for alzheimer’s, heart disease, neural tube defect, crohn’s disease, Perinicious Anaemia, lyme disease, GERD, osteoporosis, pregnancy, diabetes, hairloss, AMD etc.

Keywords: Vitaminb12, Functions, Physiology, Chronic Diseases.

[Full Text Article]

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