What are Vitamin B12 injections Vitamin B12 injections are used to quickly raise your B12 levels when they're low or when your body can't absorb it properly from food or tablets. What B12 Injection Frequency: How Often Should You Get a B12 Shot? Liv Hospital B12 Injection Frequency: How Often Should You Get a B12 Shot? Liv Hospital Vitamin B12 Shots Specialist Near Me in Canton, MI Does B12 Help You Lose Weight? Kansas City Med Spa 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