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Vitamin B12 stores are depleted more rapidly in older individuals, making them more susceptible to vitamin B12 deficiency, even after a brief period of metformin usage [43]
[DOI] [PubMed] [Google Scholar] Di Nardo G

& Kozarich, J

Estimating the impact of adopting the revised United Kingdom acetaminophen treatment nomogram in the U.S

It is not an over-the-counter or lifestyle compound
