So the practical takeaway is not oral is better or SC is better. It is: pick one route, follow the documented per-dose figure for the vial you have, and keep the route constant so that whatever you observe is not confounded by a mid-stream route change
It works in the brain to suppress appetite, in the gut to slow digestion, and across multiple organ systems to shift how your body processes energy
Treatment Intervals There are lots of reasons ro consider getting a Vitamin B12 shot, as explained above
ADVERSE REACTIONS Generalized: Anaphylactic shock and death have been reported with administration of parenteral vitamin B 12
Food intake was not impacted, and any observable side effects or toxicity were negligible to the point where they should not be taken seriously
Notation of interest: Methylcobalamin B12, is often considered beneficial for individuals with Methylenetetrahydrofolate reductase (MTHFR) gene mutation