Can You Take Iron and Vitamin K Together?
No documented interaction was identified between iron and vitamin K in the sources reviewed.
What the interaction means
Iron's NIH fact sheet does not mention vitamin K. MedlinePlus's vitamin K page does not mention iron.
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 authoritative sources 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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- Iron and Vitamin DInsufficient evidence
- Iron and St. John's WortInsufficient evidence
- Iron and ProbioticsInsufficient evidence
- Iron and CopperInsufficient evidence
- Iron and TurmericInsufficient evidence
- Iron and MetforminInsufficient evidence
- Iron and CoQ10 (Coenzyme Q10)Insufficient evidence
- Iron and CreatineInsufficient evidence
- Iron and AtorvastatinInsufficient evidence
- Iron and MelatoninInsufficient evidence
- Iron and LisinoprilInsufficient evidence
- Iron and SertralineInsufficient evidence
- Vitamin K and LisinoprilInsufficient evidence
- Vitamin K and WarfarinUse caution
- Vitamin K and Vitamin DInsufficient evidence
- Vitamin K and CalciumInsufficient evidence
- Vitamin K and CiprofloxacinInsufficient evidence
- Vitamin K and CreatineInsufficient evidence
- 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 DoxycyclineInsufficient evidence
- Vitamin K and OmeprazoleInsufficient evidence
- Vitamin K and CoQ10 (Coenzyme Q10)Insufficient evidence
- Vitamin K and MagnesiumInsufficient evidence
- Vitamin K and ProbioticsInsufficient evidence
- Vitamin K and SertralineInsufficient evidence
- Vitamin K and MetforminInsufficient evidence
- Vitamin K and MelatoninInsufficient evidence
- Vitamin K and AtorvastatinInsufficient evidence