do b12 injections affect b12 test Understanding the Vitamin Shot: Benefits, Risks, and Dosage Guide Normal B12 Levels (by Age)

The enzyme responsible for formal dehyde-induced toughening is called TMAO-ase or TMAO demethylase and is most commonly found in the gadoid fishes (cod family)

In severe cases, prolonged B vitamin deficiency can lead to beriberi, pellagra, or Wernicke-Korsakoff syndrome, the last of which causes serious neurological problems

Ultimately, the right choice between Mounjaro and Wegovy depends on your preference for an injection versus a pill, how your body responds, and what fits best with your daily routine

Last reviewed: May 11, 2026 BAC Water Depot Editorial Team

A review of research studies shows that the average duration of B12 injection benefits is around 12 weeks

But if you inject less frequently, the ampoules may become out of date