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The reality is nuanced: the clinical significance of elevated B12 depends almost entirely on why its elevated
Also, certain medications, like proton pump inhibitors and metformin, might affect B12 absorption
In these situations, its usually recommended that you supplement your diet with either a B12 shot or oral supplement
"Structures of the N-terminal modules imply large domain motions during catalysis by methionine synthase"
Vitamin injections are a very quick and efficient method of addressing deficiencies
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