Gut Bacteria Train Intestines to Fight Inflammation | Science News

Science News Today | 2 Min News | The Daily News Now! · Aug 21, 2026 · 1m

Your gut bacteria may be secretly training your intestines to fight inflammation — and it’s all thanks to fiber. New research reveals that when microbes break down fiber, they produce butyrate, which leaves a lasting molecular memory in intestinal cells. Even after butyrate disappears, these cells continue signaling for anti-inflammatory protection, boosting the immune system’s ability to tolerate harmful triggers. Mice treated with butyrate showed stronger resistance to inflammation weeks later — without changing their gut microbes. A key messenger, N1-acetylspermidine, links gut cells to…