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Description
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Journal of mid-life health, 16(1), 2631

Ingredients: See Label

B12 also supports red blood cell formation, preventing megaloblastic anemiaa cause of fatigue and weakness

(PubMed) Smith AD, Refsum H

Second, the remethylation of homocysteine to methionine, by methionine synthase, with methyl B12 as a co-factor