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Binding to intrinsic factor (IF) : Parietal cells in the stomach lining secrete intrinsic factor, a glycoprotein that binds B12 in the small intestine

Das sind im Grunde kurze Aminosureketten , die als chemische Botenstoffe funktionieren

PMID: 32318130

doi: 10.3389/fpsyt.2019.00207 Pubmed Abstract CrossRef Google Scholar View reference in article 41 JonesKSParkingtonDABourassaMWCeramiCKoulmanA

Other tests they may do include: Advertisement Since vitamin B12 absorption is blocked, your healthcare provider may prescribe intramuscular vitamin B12 injections

Use of these compounds outside controlled research settings may carry legal, ethical, and health risks