b12 injection red Hydroxocobalamin acetate ampoules, vitamin B12a. coloured solution for in the treatment for vitamin deficiency. Accord Healthcare Stock Photo B12 Shot | The IV

And since your body cant make it, you have to get it from animal-based sources or supplements

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

Very best wishes

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The key takeaways about B12 shots vs IV infusions center on matching the delivery method to your specific health needs: B12 shots deliver a single nutrient via intramuscular injection, making them ideal for routine maintenance and diagnosed deficiencies at a lower cost per session

For vitamin B12 deficiency, injecting the vitamin into the muscle is recommended if the deficiency is severe