Rhonda Patrick: How sugar stiffens your heart

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Peer-Reviewed Research
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Rhonda Patrick

Video Summary · February 23, 2026

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Key Takeaways

  • Reduce refined sugar intake to prevent glucose from stiffening cardiac collagen, which causes permanent heart stiffness.
  • Exercise regularly to help muscles efficiently uptake glucose, preventing excess circulation/sugar-collagen reactions.

Notable Quotes

“That collagen becomes stiffer when it reacts with glucose. And that collagen is there forever.”

Bottom Line

Cut added sugars and prioritize exercise to protect heart flexibility long-term by minimizing sugar-collagen reactions.

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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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