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When you take enough B12, your metabolism gets an extra boost
Vitamin B12 can be stored in the liver for a long time, so a dificiency can take a few years to reveal itself
By technically positioning the product as a research chemical rather than a drug intended for human use, vendors sidestep the FDA oversight that governs pharmaceutical products
That distinction is the whole article
They replace deficient B12 when absorption or intake is inadequate
Conformational Change Near the Redox Center of Dihydrolipoamide Dehydrogenase Induced [PMID: 25757537] Laboratory literature summary: Conformational Change Near the Redox Center of Dihydrolipoamide Dehydrogenase Induced by NAD(+) to Regulate the Enzyme Activity
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