bpc 157 contraindicaciones Péptidos para longevidad: evidencia y riesgos en 2026 Mass:3ml Sandoz vitamin B12 vial bpc 157 peptide injections

bpc 157 contraindicaciones Péptidos para longevidad: evidencia y riesgos en 2026 Mass:3ml Sandoz vitamin B12 vial bpc 157 peptide injections

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Because the body cannot produce B12 independently, deficiency develops when dietary intake is inadequate or absorption is impaired

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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