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Patients should be reviewed 812 weeks after commencing treatment to assess: Symptomatic improvement, particularly resolution of fatigue and neurological symptoms Haematological response (normalisation of haemoglobin and mean cell volume) Reticulocyte count typically rises within one week, indicating bone marrow response Repeat serum B12 testing is generally not useful after starting parenteral therapy, as levels remain elevated for months

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B12 is essential for protecting the nervous system by contributing to axon growth in nerve cells

It can also happen after eating certain foods like dairy or high-protein meals

No statement in this article should be interpreted as evidence of clinical efficacy, comprehensive human safety, therapeutic suitability, or regulatory approval