how often can you have a vitamin b12 injection Injections How Often Should You Get

Do I need to have a blood test prior to prove B12 deficiency

If you have low vitamin B12 levels or deficiency, consult with your doctor about whether B12 shots are good for you or not

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Reported frequency Daily, per community and commercial sources

In contrast, B12 injections go directly into the bloodstream

Detection windows are not publicly established with precision, but peptide metabolites can persist for days to weeks depending on testing sensitivity