is oral b12 as effective as injections Shot Guide: Benefits, Dosage & Side Effects Vitamin B12 Injections vs. Supplements:

Getting the right diagnosis is vital to know why you have anemia and how to treat it

Even with daily injection doses of 1,000 g, the body absorbs only a fraction of this amount, with the rest being excreted in urine

You can get it at clinics, doctors' offices, or pharmacies.

[28] In female athletes, choline supplementation significantly reduced body fat as well as levels of the hunger hormone leptin

This additive helps inhibit the growth of bacteria after the vial has been opened

If the treatment is inadequate due to poor understanding of B12 metabolism, and symptoms return as a result, that's due to poor research/lack of adequate knowledge on how to treat B12 deficiency properly in PA