where can you inject a b12 shot Best Vitamin Injection Sites: to B12 · PA Relief How to inject B12 in

This typically involves: Intrinsic factor antibodies (highly specific for pernicious anaemia, though sensitivity is only 50%) [12] [28] Gastric parietal cell antibodies (more sensitive but less specific) Coeliac serology if malabsorption is suspected Consideration of upper gastrointestinal endoscopy in selected cases, particularly with autoimmune gastritis/pernicious anaemia NICE guidance emphasises that treatment should not be delayed whilst awaiting antibody results if clinical features strongly suggest deficiency, as irreversible neurological damage can occur

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This could be due to a variety of reasons such as genetic factors, underlying health conditions like pernicious anaemia, or gastrointestinal surgery

What is Vitamin B-12