Vitamin B12 is an essential vitamin that we primarily obtain from our diet
According to the National Heart, Lung, and Blood Institute, this absorption failure makes B12 injections the primary and most effective treatment, as they deliver the nutrient directly where your body can use it, bypassing the digestive system entirely
[1] Because intrinsic-factor-dependent uptake in the distal ileum can be absent in conditions such as autoimmune gastritis, pancreatic insufficiency, or bariatric surgery, the intramuscular or subcutaneous route bypasses gastrointestinal barriers and reliably restores serum concentrations
How to Give Yourself a B12 Shot (SQ) Heres how to give a B12 shot subcutaneously: Prepare for Injection To prevent infection, wash your hands before giving a B12 shot
Use sterile technique, wipe the stopper before each access, avoid touching sterile surfaces, and keep the vial refrigerated when not in use