route of vitamin b12 injection Dosage for Adults: Guidelines Best Vitamin B12 Injection Sites:

Any potential impact on blood sugar is likely secondary to the underlying condition rather than a direct effect of high B12 19

SwansonJAHoppeADThe coordination of signaling during Fc receptor-mediated phagocytosis

Those who accept that this is a supportive tool not a magic bullet and are willing to pay for clinician supervision, quality sourcing, lab monitoring

Vitamin B 12 is needed to prevent anemia, since making porphyrin and heme in mitochondria for producing hemoglobin in red blood cells depends on succinyl-CoA made by vitamin B 12

The relevance of these observations is currently being validated in in vivo models (105)

The short answer is: it depends on where you go