However, the primary use of B12 injections around the world, and the main reason people need it so badly, is because of a disorder called pernicious anemia
Common indications include: Pernicious anaemia an autoimmune condition where the stomach cannot produce intrinsic factor, a protein necessary for B12 absorption [8] [9] Malabsorption disorders including Crohn's disease, coeliac disease, or following gastric surgery Strict vegan or vegetarian diets with confirmed deficiency though high-dose oral B12 may be sufficient if no malabsorption exists Certain medications such as metformin or proton pump inhibitors that may interfere with B12 absorption [9] [10] Neurological symptoms including peripheral neuropathy, memory problems, or balance difficulties related to deficiency Diagnosis should be confirmed through blood tests measuring serum B12 levels, full blood count, folate, and often anti-intrinsic factor antibodies
If you have one of those conditions, getting B12 injections can prevent a deficiency before it starts
Needle and syringe Sharps disposal container Alcohol and cotton balls Gauze or bandages Vitamin B12 solution The size and length of your needle will depend on the injection site and your body type