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Some of the roles that are attributed to vitamin B12 include: Forming red blood cells Playing a role in DNA/RNA synthesis Acting as a cofactor for methionine synthase (helping with methylation or the conversion of homocysteine to methionine, which protects cardiovascular health and more) Facilitating metabolic conversion of protein and fats Carrying out neurotransmitter functions and helping with production of hormones Helping convert amino acids and make creatine Producing myelin sheath (the coating of nerves) Helping with synthesis of hemoglobin Playing a role in fetal development during pregnancy How Much Do You Need
Keep vials sealed, dry, and protected from light for maximum longevity
Main limitation: selectivity figures (such as an in-vitro ~11.7-fold preference for senescent cells) come from cell models, not humans
doi:10.1007/s10517-006-0365-z
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