can b12 injections cause insomnia The independent association between vitamin and in Chinese patients with type 2 diabetes mellitus: a cross-sectional study can b12 injections cause insomnia – can b12 injections cause insomnia

In rare cases, B12 injections can cause more serious side effects

Streeper RS, Grueter CA, Salomonis N, Cases S, Levin MC, Koliwad SK, Zhou P, Hirschey MD, Verdin E, Farese RV Jr

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Absorption Issues from GI Conditions and Surgery Other health issues can throw up similar roadblocks to B12 absorption, making long-term injection therapy the only effective solution

Reduced secretion of gastric acid and pepsin, from the use of H 2 blocker or proton-pump inhibitor (PPI) drugs, can reduce the absorption of protein-bound (dietary) vitamin B 12 , although not of supplemental vitamin B 12