Why do Vitamin E and Vitamin K interact?

High-dose vitamin E (>400IU) can interfere with vitamin K The interaction is moderate.

Vitamin E + Vitamin K

Q: Can I take Vitamin E with Vitamin K?

Usually yes, but not at the same time. High-dose vitamin E (>400IU) can interfere with vitamin K Avoid very high dose E with K supplements

Can you take Vitamin E and Vitamin K together? Here's what the science shows.

Moderate InteractionIngredientMD curated

Vitamin E and Vitamin K interact moderately. High-dose vitamin E (>400IU) can interfere with vitamin K

Bottom line: Avoid very high dose E with K supplements

How They Interact

High-dose vitamin E (>400IU) can interfere with vitamin K

Timing

Avoid very high dose E with K supplements

What to do about it

Avoid very high dose E with K supplements

Evidence Sources

IngredientMD curated interaction database

Common Questions

Vitamin E and Vitamin K have some interaction to consider. High-dose vitamin E (>400IU) can interfere with vitamin K Avoid very high dose E with K supplements

Compare Side-by-Side

Vitamin E vs Vitamin K: what each one is for

Related Interactions

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Every ingredient page carries the interactions, cautions and timing behind entries like this one.

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Medical Disclaimer: This information is for educational purposes only and is not intended as medical advice. Always consult with a healthcare provider before making changes to your supplement regimen, especially if you take medications.