are b12 injections or tablets better which is vitamin injection tablet What Injections? And Are They Safe? B12 Vs B12 Shots & B12 Injections:

If it's due to diet, you can eat more red meat, chicken, fish, and dairy

How Fast Does a Vitamin B12 Shot Work

When you swallow a B12 pill, several steps have to work for it to be absorbed: stomach acid and the enzyme pepsin must release B12 from food or the supplement, the stomach must secrete a protein called intrinsic factor that binds to B12, and the B12-intrinsic factor complex must reach the ileum (the end of the small intestine) where it is finally absorbed

Its a big fat no from me

Now, were going to show you how long it takes Vitamin B12 to work to notice changes

If youre feeling tired, have nerve problems, or notice other symptoms, see a doctor