self-administered vitamin b12 injections Best Injection Sites Instruction Guide for Intramuscular (IM)

They are simply the best way to replenish your cell and tissue stores as fast as possible, which is exactly what you want

[DOI] [PMC free article] [PubMed] [Google Scholar] 49.Cheyssac C, Lecoeur C, Dechaume A, et al

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Amounts of vitamin B 12that are recommended by the Food and Nutrition Board, National Academy of Science-National Research Council for pregnant women (4 mcg daily) should be consumed during pregnancy

B12 helps make neurotransmitters and keeps nerves strong

Interestingly, the trials also documented improvements in metabolic markers including lipid profiles and markers of insulin sensitivity