how long should a b12 injection last Does Shot In Your Body? Vitamin B12 Injections in Greater
Description
If you dont have enough B12, you can end up developing a certain kind of anemia known as megaloblastic anemia

A B12 injection may be worth discussing if: You have absorption problems: Conditions like Crohn's disease, celiac disease, or atrophic gastritis can reduce how well your body absorbs B12 from food, and past gastric surgery can have a similar effect

Normal serum B12 ranges vary between laboratories, so results should be interpreted using your local laboratory's reference ranges

Heart problems, including signs of rapid weight gain, general swelling or feeling like you're short of breath
