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Pernicious Anemia and Vitamin B12

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Loss of Vitamin B12 leads to a disease called Pernicious anemia.The chemical reaction involved is discussed here.

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The expert examines pernicious anemia and vitamin B12.

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We require only small amount of Vitamin B12 ,about 1 micro gram per day but if our stomach does not have enough HCl and intenstine does not absorve the vitamin then pernicious anemia ...

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