do you need b12 injections for life How Often Should Get Injections? On-The-Go B12 Injection at enTrust

Many patients first notice tingling in their feet or persistent fatigue and by the time bloodwork confirms the deficiency, some nerve damage doesnt reverse

IM B12 injection is especially appropriate when oral supplementation has been inadequate, when absorption is compromised, or when neurological symptoms are present (Stabler, New England Journal of Medicine , 2013)

Crit Care Med

The first paper you see is from 1971 this discusses excessive prescription of B12 and seeks to standardise B12 treatment

On the other hand, using peptides with no oversight and purchasing from non-sanctioned sources certainly increases the risk of adverse events