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Hormonal changes extend beyond metabolic hormones
If you accidentally take your supplement twice in a day, for example, your body will excrete whatever isnt used or needed to be stored
More serious vitamin B12 side effects may include the following: Allergic reactions, such as hives, trouble breathing, or swelling of the face, lips, tongue or throat
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Medications know to cause bone marrow suppression (e.g., myelosuppressive antineoplastic agents) may result in a blunted or impeded response to methylcobalamin, vitamin B12 therapy
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