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You need B12 to create healthy blood cells
Unlike vitamin B12 deficiency, which produces well-recognised neurological and haematological problems, hypercobalaminaemia (elevated B12) is typically asymptomatic
It is certainly not sufficient for a GP practice just to say that it is their policy or internal procedure
The NHS treatment pathway and the 2024 NICE guideline both assume B12 injections are given in a clinical setting against a confirmed deficiency, not self-sourced and self-administered
* Correspondence: Artnora Ndokaj, [email protected] Disclaimer All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers
White blood cells are essential for fighting infections, so low B12 can leave you vulnerable to illness
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