what are b12 injections for Shots at Home: How, Where & How Often to Inject Yourself Benefits of Vitamin B12 Injections

If your B12 levels are sufficient, you may not see an increase in energy

doi: 10.1186/s13071-021-05134-1 3

That makes a true overdose very uncommon

Others who might be prescribed B12 shots are those at the highest risk for a B12 deficiency, including: Vegans, since vitamin B12 is found only in animal products People ages 60 and up since their bodies don't absorb B12 as efficiently People with Crohn's disease or pancreatic disease, since they prevent nutrient absorption People who had weight-loss surgery, which decreases B12 absorption People with an eating disorder People with HIV People with diabetes Since a mild B12 deficiency might not cause symptoms, it can go undetected for years since levels are not checked during routine blood work