B-sub 500 mg / 1000 mg
B-sub is a synthetic compound of vitamin B12 used mainly to treat deficiencies of the vitamin. It has a role in several methylation reactions in the body. In the body, in the form of methylcobalamin, it acts as a cofactor in the conversion of homocysteine to methionine, and in the form of adenosylcobalamin, it plays a role in the conversion of methylmalonyl-CoA to succinyl-CoA. Both these reactions are vital for cell division and growth
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