You can get Vitamin B12 shots in three ways: intramuscularly (IM), subcutaneously, or intravenously (IV)
Age You are more likely to be B12 deficient if you are over the age of 65, as the body becomes less efficient at absorbing nutrients as you go on in life
Proper storage is key for your B12 injections
It also prevents certain types of anemia by keeping nerves and red blood cells healthy, which allows increased red blood cell production and, in turn, increases their oxygen-carrying capacity
Contraindications, intolerable GI effects, cost, or simple preference
You can return to your usual activities right after receiving the injection