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Does the vitamin B12 injection hurt
folic acid may improve anemia but not prevent nerve damage
(Peptide Sciences) PeptideGurus, FOXO4-DRI peptide mechanism of action. 2025
When investigating elevated B12, additional tests such as active B12 (holotranscobalamin), methylmalonic acid, and homocysteine may help clarify true B12 status
The presence of an MTHFR polymorphism should therefore be viewed as one factor influencing methylation efficiency rather than evidence that folic acid is ineffective
