B12 Injection sites + How to use B12 Shots Safely Here We Go Again! Pernicious Anaemia Society Vitamin B12 Injections in Oakland, CA FACE Main benefits of B12 injections 1) Increased energy & reduced fatigue B12 helps convert food into usable energy Deficiency often causes tiredness, weakness, and low stamina 2) Healthy red blood cells Prevents If you have a low vitamin B12 level, injections can go a long way toward improving your health and well being. But if your B12 level is normal, don't fall for claims that 3 monthly injections : r B12_Deficiency