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vitamin e and vitamin k

High-dose vitamin E may interfere with vitamin K

What's happening

Very high doses of vitamin E (>800 IU) can interfere with vitamin K's blood clotting function.

Recommendation

Avoid very high vitamin E doses, especially if on blood thinners.

Timing

Moderate doses are fine together

Sources

  • — American Journal of Clinical Nutrition

Frequently Asked Questions

Can I take vitamin e and vitamin k together?

High-dose vitamin E may interfere with vitamin K. Avoid very high vitamin E doses, especially if on blood thinners.

How should I time vitamin e and vitamin k?

Moderate doses are fine together

Is this interaction dangerous?

This interaction is rated “Caution” by Formulate. Very high doses of vitamin E (>800 IU) can interfere with vitamin K's blood clotting function.

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Medical disclaimer. This page is for educational purposes only and does not replace advice from a qualified healthcare provider.