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High doses of Vitamin C taken within 1 hour of the shot may lower B12 in blood (minor, stagger doses)
A plateau doesn't mean the medication has stopped working
Andrew Huberman: They're cautious
Blood glucose was measured in a drop of whole blood at each time point using a handheld glucometer (Contour XT, Bayer)
10.3390/molecules27041210 303 Mac GiollabhuiN.SlaneyC.HemaniG.Foley
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