Walnut diet may boost gut bacteria and cut colon cancer risk

NCT ID NCT05195970

First seen Apr 25, 2026 · Last updated May 23, 2026 · Updated 3 times

Summary

This study looked at whether adding walnuts to the diet can positively change gut bacteria, reduce inflammation, and improve colon tissue health. Researchers studied 140 adults aged 39-75 who were scheduled for a colonoscopy. Participants ate walnuts daily, and scientists measured changes in their gut microbiome and other health markers.

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Contacts and locations

Locations

  • UConn Health

    Farmington, Connecticut, 06032, United States

  • Weill Cornell Medicine

    New York, New York, 10065, United States

Conditions

Explore the condition pages connected to this study.