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High vitamin B12 levels may also be present in people with conditions such as liver disease and certain cancers

Top 10 Signs of a Vitamin B12 Deficiency A vitamin B12 deficiency can show up in many ways, from subtle to serious

"Analytical approaches for the detection of emerging therapeutics and non-approved drugs in human doping controls." Journal of pharmaceutical and biomedical analysis 101 (2014): 66-83.

While oral supplements can support general nutrition, injections offer significantly higher absorption rates

It leaves you smooth like a dolphin and no your hair does not grow back worse and you dont end up turning into the bearded lady