Can You Take Iron and Vitamin K Together?
No documented interaction was identified between iron and vitamin K in the sources reviewed.
See the full Iron page and Vitamin K page for other reviewed interactions and reference information.
What the interaction means
Iron's NIH ODS fact sheet names levodopa, levothyroxine, lansoprazole/omeprazole, and calcium as its documented drug interactions -- vitamin K is not among them. MedlinePlus's vitamin K page does not mention iron.
No documented interaction between Iron and Vitamin K 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
Iron's NIH ODS fact sheet and vitamin K's MedlinePlus page were checked directly, full text, in both directions. Vitamin K is not among iron's named interaction concerns.
What the sources say
Last reviewed 2026-08-25
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 K and SpironolactoneInsufficient evidence
- Vitamin K and St. John's WortInsufficient evidence
- Vitamin K and CaffeineInsufficient evidence
- Vitamin K and CopperInsufficient evidence
- Vitamin K and LevothyroxineInsufficient evidence
- Vitamin K and Vitamin B12Insufficient evidence
- Vitamin K and PotassiumInsufficient evidence
- Vitamin K and TurmericInsufficient evidence
- Vitamin K and ZincInsufficient evidence
- Vitamin K and CalciumInsufficient evidence
- Vitamin K and DoxycyclineInsufficient evidence
- Vitamin K and OmeprazoleInsufficient evidence
- Vitamin K and CoQ10 (Coenzyme Q10)Insufficient evidence
- Vitamin K and MagnesiumInsufficient evidence
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- Vitamin K and MetforminInsufficient evidence
- Vitamin K and AtorvastatinInsufficient evidence
- Vitamin K and Vitamin EMonitor
- Vitamin K and AshwagandhaInsufficient evidence
- Vitamin K and Omega-3 / Fish OilInsufficient evidence
- Vitamin K and Folate / Folic AcidInsufficient evidence
- Vitamin K and LosartanInsufficient evidence
- Vitamin K and AspirinInsufficient evidence
- Vitamin K and AmlodipineInsufficient evidence
- Vitamin K and IbuprofenInsufficient evidence
- Vitamin K and EscitalopramInsufficient evidence
- Vitamin K and Vitamin CInsufficient evidence
- Vitamin K and MelatoninInsufficient evidence
- Vitamin K and Vitamin DInsufficient evidence
- Vitamin K and ProbioticsInsufficient evidence