Vitamin overload, B12 reading is extremely high

Patient : What does it mean if your B12 is twice the normal reading
Symptoms:  None
Doctor :   Thank you for your question. It is possible that this reported B12 value may be due supplementation with over the counte r vitamins, or a recent B12 shot at your doctors office. Furthermore, in rare cases there could be errors in reporting lab values in your blood test. Thank you for consulting AskTheDoctor.com

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