Can You Take Iron and Vitamin B12 Together?
No documented interaction was identified between iron and vitamin B12 in the sources reviewed.
What the interaction means
The NIH ODS vitamin B12 fact sheet's interactions section names only gastric acid inhibitors and metformin -- iron is not named. Iron's own NIH fact sheet does not name vitamin B12.
No documented interaction was identified in the authoritative sources reviewed. This is not a guarantee that no interaction exists for every dose, formulation, or individual -- it means the sources checked did not document one.
Practical context
Both substances' own current NIH fact sheets were checked directly, full text, in both directions.
What the sources say
Last reviewed 2026-08-23
Medical information disclaimer: this information is general and educational. It does not diagnose conditions, prescribe treatment, or determine whether a combination is safe for you personally. Follow your prescription label and ask a pharmacist or clinician before starting, stopping, or combining products. Full disclaimer.
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- Vitamin B12 and CoQ10 (Coenzyme Q10)Insufficient evidence
- Vitamin B12 and CopperInsufficient evidence
- Vitamin B12 and LisinoprilInsufficient evidence
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- Vitamin B12 and AtorvastatinInsufficient evidence
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- Vitamin B12 and CaffeineInsufficient evidence
- Vitamin B12 and SertralineInsufficient evidence
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