ka vitamin b12 injection have to be refrigerated Store Storage Instructions for Injectable B12 Cyanocobalamin Your Ultimate Guide to Storing
Description
To keep your B12 levels right, eat enough B12-rich foods or take supplements

I get a monthly injection of vitamin B 12

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Don't expect to feel dramatically different

The question is are these claims valid and if so what are some reasons b12 shots would not actually live up to their potential