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IV infusions achieve near-complete bioavailability by delivering B12 immediately into the vasculature
The difference between 5 units and 7 units on a syringe is tiny, and that small measurement error could mean a 40% dosing difference
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A MTHFR gene mutation occurs when the body is unable to properly process and metabolize folate (vitamin B9) and other B vitamins
doi: 10.1016/j.peptides.2018.09.002 139 HuangJZhaoJGengXChuWLiSChenZJet al
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