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Blyumin cautioned consumers to be wary of these formulations
Unexplained fatigue Unexpected bouts of fatigue or extreme tiredness are a common sign of a vitamin B12 deficiency
If you ever feel worse after a B12 injection, the cause is most likely not the B12 itself, but some troublesome excipient
Supplementary Table S2)
Scientific Reports, 10 (1), 1-11
Any organisms that enter through needle puncture proliferate more slowly at refrigeration temperatures than at room temperature
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