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If youre vegan or vegetarian, have an intestinal disorder, or are older than 65, you should consider finding out your current vitamin B12 status
Mulder TP et al
Your provider reviews your history and will decline treatment when it is not safe or appropriate
PubMed+2ScienceDirect+2 T4 animal-model review
B12 is essential in converting food into glucose, the fuel our bodies run on
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