Can You Take Copper and Vitamin K Together?
No documented interaction was identified between copper and vitamin K in the sources reviewed.
See the full Copper page and Vitamin K page for other reviewed interactions and reference information.
What the interaction means
Copper's own NIH fact sheet states plainly, "Copper is not known to interact with any medications," and does not mention vitamin K. MedlinePlus's vitamin K page does not mention copper.
No documented interaction between Copper 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
Copper's NIH ODS fact sheet and MedlinePlus's vitamin K page were checked directly, full text, in both directions. Copper's own explicit no-known-drug-interaction statement covers vitamin K as well.
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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