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Always keep unreconstituted vials sealed and stored according to manufacturer recommendations, typically at -20 degrees Celsius for long-term or 2-8 degrees Celsius for short-term storage
This matters because many adults with low B12, whether from dietary restriction, aging, or conditions like pernicious anemia, cannot absorb enough B12 through food or oral supplements alone
Oral vitamin B12 absorption drops sharply at higher doses
If youre not tracking objective markers, youre not optimizing intelligently
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