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Metformin can reduce B12 absorption, and the MHRA advises checking B12 levels if symptoms suggest deficiency, with periodic monitoring in at-risk patients
B12 is responsible for several processes within the body, like red blood cell formation and the production of DNA
chronic liver disease and hepatitis may present with elevated levels Renal impairment : Reduced clearance can contribute to accumulation, though this is rarely clinically significant Solid tumours : Certain malignancies, particularly hepatocellular carcinoma and metastatic disease, may elevate B12 levels [3] Evidence suggests that unexplained markedly elevated B12 levels without supplementation may sometimes be associated with underlying disease
Regardless of the dosage, your practitioner will recommend weekly injections for several weeks, maybe even months until you reach your desired goal
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