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( In Kuzminskis study, serum vitamin B12 levels were significantly higher in the oral (vitamin B12 2000 g) compared with IM (vitamin B12 1000 g) group (643 328 vs
Additionally, B12 is involved in energy metabolism, aiding in the conversion of food into energy, and has implications for mood regulation through its role in neurotransmitter synthesis
[25] Supplementation with vitamin B 12 during conditions of deficiency restores the intracellular level of cobalamin and maintains a sufficient level of the two active coenzymes: methylcobalamin and adenosylcobalamin
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