Can You Take Vitamin D and Vitamin K Together?
No documented interaction was identified between vitamin D and vitamin K in the sources reviewed.
See the full Vitamin D page and Vitamin K page for other reviewed interactions and reference information.
What the interaction means
MedlinePlus's vitamin D page does not mention vitamin K, and MedlinePlus's vitamin K page does not mention vitamin D -- both are checked directly against each other's dedicated MedlinePlus reference page, not just a general search.
No documented interaction between Vitamin D 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
Vitamin D's and vitamin K's MedlinePlus pages were checked directly, full text, in both directions. Both are fat-soluble vitamins commonly taken together in combination supplements; neither page raises a caution about combining them.
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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