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Diagnosing Vitamin B12 Deficiency in the UK Diagnosis of vitamin B12 deficiency in the UK follows a structured approach combining clinical assessment, biochemical testing, and investigation of underlying causes, as outlined in guidance from NICE and the British Society for Haematology

Inject the Medication Pinch a small fold of skin at the injection site with your non-dominant hand

IM injections are the standard for rapidly restoring B12 levels, particularly in severe cases and patients with absorption issues

This method bypasses the digestive system, allowing for faster and more efficient absorption of the vitamin