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normal why the gap matters: Many labs flag a ferritin of 15 or 20 ng/mL as normal. Functional medicine care team lead and a growing body of research disagree

High-dose oral therapy (10002000 micrograms daily) can be effective even in pernicious anaemia, as approximately 1% of B12 is absorbed through passive diffusion independent of intrinsic factor

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GLP-1 medications, specifically semaglutide (Ozempic, Wegovy) and tirzepatide (Mounjaro, Zepbound), work in part by acting on receptors in the brain that regulate hunger

What Are the Symptoms of Vitamin B12 Deficiency