In general, individuals who cannot absorb vitamin B12 correctly may have pernicious anemia
They synthesized it so we can use it as a targeted therapy
It works by promoting angiogenesis (new blood vessel formation), modulating growth factors, and supporting the bodys natural repair mechanisms
Health authorities in several countries, such as Australia and New Zealand, have taken steps to restrict its availability, classifying it as a prescription-only medicine despite it not being a legitimately prescribed product
It plays a role in cell metabolism
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