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25 Patients diagnosed with vitamin B 12 deficiency whose history and physical examination do not suggest an obvious dietary or malabsorptive etiology should be tested for pernicious anemia with anti-intrinsic factor antibodies (positive predictive value = 95%), particularly if other autoimmune disorders are present
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Can I get too much B12
[7] It is advisable for patients to inform their healthcare provider of all medications and supplements they are taking, so that potential interactions can be monitored and managed appropriately
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