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b12 injection subcutaneous vs.intramuscular What Happens If You Inject Into Fat? · SQ vs. IM · PA Relief Subcutaneous Injection | Step-by-Step Procedure
Description
Taking extra B12 when your levels are already normal is not known to add energy or other benefits
Supplementary Table 5 presents SUCRA values
Your body can absorb only so much
That is a genetic-knockdown study in mice, not a drug trial: it tells you the target is real and metabolically meaningful in an animal model, but it does not test a drug, a dose, or a route

An injection can be directly administered into the body which can then be better absorbed and processed with greater efficiency
