how long for vitamin b12 injections to work Injections: What You Need Know How Quickly Do B12 Shots

I have difficulty finding facilities that will take needle donations

The ideal frequency of injections for you will depend on your specific health goals, nutritional needs, and response to treatment

Dietary supplements containing only vitamin B12 contain higher doses, such as 500 mcg to 1,000 mcg of vitamin B12

Pregnancy: Teratogenic Effects

These injections are usually given in the arm or another area containing more subcutaneous fat, such as the thigh, abdomen, or buttocks

its an autoimmune disorder where the bodys immune system mistakenly attacks the stomach cells that produce a crucial protein called intrinsic factor