vitamin b12

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Vitamin B 12 Deficiency in Older Adults

What is Vitamin B12Vitamin B12 is a water-soluble B vitamin found only in foods of animal origin. Vitamin B12 contains the mineral cobalt, as a resultcompounds with vitamin B12 activity are collectively referred to as cobalamins. There are 8 forms of B-12, four of which have vitaminactivity (cyanocabalamin, hydroxocabalamin, methylcobalamin, and adenosylcobalamin). Why is Vitamin

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