how long do b12 injections take to work Injections: Who Should Get Them and They Last? Vitamin B12 Injections: Unlock Energy,

The side effect profile is not trivial

In addition, B12 deficiency can result in Megaloblastic Anemia, a type of anemia in which the red blood cells grow without dividing, becoming enlarged

But they depend entirely on you remembering them daily, and without testing, you have no way to confirm they are working

Vitamin B12 is a requirement your body needs to function properly, as well as the development of the brain, nerves, blood cells and so much more

While B12 is available in oral supplements, absorption can vary greatly

But for most purposes (like weekly maintenance injections), IM is the preferred route at home because its simpler (the vitamins absorb quickly from muscle into the bloodstream over a few hours)