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diagnosis my iron levels kept dropping to the floor, I was given pills for three months and they came back up only to fall again a few months later

Key Takeaways Vitamin B12 is essential for red blood cell production, DNA synthesis, and brain function, with dietary sources primarily from animal products, making supplementation vital for vegetarians and vegans

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NICE Clinical Knowledge Summaries recommend B12 injections for: Pernicious anaemia an autoimmune condition affecting intrinsic factor production Malabsorption syndromes including coeliac disease and inflammatory bowel disease Post-surgical states particularly following gastrectomy or ileal resection Strict vegan diets when oral supplementation proves inadequate, though oral cyanocobalamin is usually sufficient for dietary deficiency Clinical trials demonstrate that B12 injections rapidly improve haematological parameters and neurological symptoms when deficiency is confirmed through blood tests