Michael Greger: Friday Favorites: Does Coffee Inhibit Iron Absorption? What Are the Effects of Having Too Much Iron?

ByLongevity Notes Editorial
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Peer-Reviewed Research
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Michael Greger

Video Summary · May 15, 2026

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Key Takeaways

  • Avoid drinking coffee or tea with meals to prevent inhibiting iron absorption by 39% (coffee) or 64% (tea).
  • Drink coffee at least one hour before meals to minimize its effect on iron absorption.
  • Add vitamin C-rich foods like oranges or orange juice to meals to counteract the iron-inhibiting effects of coffee or tea.
  • If you have high iron stores, consider regularly consuming coffee, tea, peppermint, chocolate milk, or chamomile with meals to help reduce iron absorption.
  • If you’re at risk for iron deficiency anemia, avoid consuming polyphenol-rich foods (like turmeric) or beverages (like tea and coffee) with meals.

Bottom Line

Adjust your coffee and tea consumption timing and pair meals with vitamin C-rich foods to optimize iron absorption, depending on your iron status.

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Medical Disclaimer

This article is for informational purposes only and does not constitute medical advice. The research summaries presented here are based on published studies and should not be used as a substitute for professional medical consultation. Always consult a qualified healthcare provider before making any changes to your health regimen.

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