Can You Take Creatine and Vitamin K Together?
No documented interaction was identified between vitamin K and creatine in the sources reviewed.
See the full Creatine page and Vitamin K page for other reviewed interactions and reference information.
What the interaction means
MedlinePlus's vitamin K page does not mention creatine. NCCIH's bodybuilding-supplements page (which covers creatine) does not mention vitamin K, and does not describe creatine as affecting clotting or interacting with vitamins.
No documented interaction between Creatine 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 K's MedlinePlus page and NCCIH's bodybuilding-supplements page were checked directly, full text, in both directions. Creatine's known effects (muscle water retention, kidney-function monitoring in some populations) are unrelated to vitamin K's clotting-factor role.
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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