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iron and zinc

Zinc and iron compete for absorption

What's happening

High doses of zinc can interfere with iron absorption, and vice versa. Both use the same transport mechanisms.

Recommendation

Take zinc and iron supplements at different times.

Timing

Separate by at least 2 hours

Sources

  • — American Journal of Clinical Nutrition

Frequently Asked Questions

Can I take iron and zinc together?

Zinc and iron compete for absorption. Take zinc and iron supplements at different times.

How should I time iron and zinc?

Separate by at least 2 hours

Is this interaction dangerous?

This interaction is rated “Caution” by Formulate. High doses of zinc can interfere with iron absorption, and vice versa. Both use the same transport mechanisms.

Want to check your whole stack?

The free checker lets you add any combination of supplements and medications at once. Formulate's desktop app goes further — every stack change surfaces interaction alerts automatically.

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