It has specifically not been shown that oral vitamin B12 therapy is as good as parenteral therapy to alleviate neurologic symptoms, particularly in subjects with severe neurologic presentations (274)
That means your body needs it to carry out lots of important functions, including (1, 2): Red blood cell formation DNA synthesis Brain and nervous system functioning Energy production (metabolism) Immune system health Risk Factors for Vitamin B12 Deficiency Your body doesnt produce B12 on its own
If you get your shots from a medical or weight loss spa, they may be part of a weight loss package
B12 shots are considered very safe, with a low risk of side effects
Overall Well-being Promote healthy skin, muscle function, and a robust immune system for a sense of vitality from the inside out
Reviewing and stopping B12 injections You should review or stop B12 injections when a blood test shows your levels have normalised, when a dietary cause can be managed with tablets, or when your GP advises a change