If a blood test shows vitamin B12 deficiency likely due to metformin use, should supplements be started immediately or wait for intrinsic factor antibody results?
Abstract
Vitamin B12 supplementation is typically advised to begin promptly if deficiency is detected, especially when associated with metformin use, without waiting for intrinsic factor antibody tests.
Fields of Study & Subjects
Folate and B Vitamins Research
Porphyrin Metabolism and Disorders
Hematological disorders and diagnostics
Publication details
- Journal / source
- Zenodo (CERN European Organization for Nuclear Research)
- Publication date
- 3 February 2026