Science

A 24-hour fast triggers a surprising repair response in the gut

The preclinical findings could pave the way for new treatments that protect healthy tissue during cancer therapy, potentially without requiring patients to fast.

✦ Extractive summary — built from the sources' own reporting•From 1 source•1 min read•Updated November 8, 2026, 11:06 AM UTC

Scientists have discovered that fasting for just 24 hours increases a beneficial gut bacterium that helps the intestines regenerate after radiation damage.

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