why vitamin b12 injections versus oral supplemnets gastric surgery Are Shots Right for You? Vitamin B12 Injections vs. Oral

In asymptomatic patients with risk factors (see Table 1: Patient Risk Factors Associated with B 12 Deficiency below) consider supplementation in lieu of testing

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Individual factors such as metabolic rate, body weight, and age may theoretically influence how B12 is distributed and utilised, though evidence for their impact on injection intervals is limited

10.1016/j.semcdb.2011.05.005 [DOI] [PubMed] [Google Scholar] 24

But if you add 1mL to that same vial, the concentration jumps to 5mg/mL

This technique measures total vitamin B12 using a ruthenium-label recombinant porcine intrinsic factor as the reporter probe