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In fact, injections and infusions may be more beneficial for people deficient in B12 due to a digestive issue or because they are older and have less stomach acid
The correct dosage varies depending on whether you are maintaining adequate levels or treating a deficiency
Devalia V, Hamilton MS, Molloy AM (2014) Guidelines for the diagnosis and treatment of cobalamin and folate disorders
Permanent nerve damage from prolonged deficiency
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