why would you need a b12 injection Vitamin Injections: What To Know Vitamin B12: What It Is,

Overexpression of NNMT is associated with obesity and type 2 diabetes, as it slows fat cell metabolism

[15] Since choline breaks down fat as an energy source, choline supplementation caused rapid fat and weight loss in female athletes

There is not as much evidence regarding long-term efficacy or safety of gel vitamin B12 compared to injections, but at this time it appears B12 gel works similarly to raise blood levels

Zweygarth E, Schillinger D, Kaufmann W, Roettcher D (1986) Evaluation of sinefungin for the treatment of Trypanosoma (Nannomonas) congolense infections in goats

If youre taking vitamin B12 supplements in addition to the vitamin-rich foods youre consuming, you could experience diarrhea, nausea, vomiting and headache