High FODMAP diet causes barrier loss via lipopolysaccharide-mediated mast cell activation
21st March 2025
Prashant Singh, Gintautas Grabauskas, Shi-Yi Zhou, Jun Gao, Yawen Zhang, Chung Owyang (2021). This article discusses how a high FODMAP (HFM) diet induces mast cell activation and colonic barrier dysfunction in rodent models and patients with IBS-D. It highlights the critical role of TLR4-dependent mast cell activation in FODMAP-induced barrier loss and the potential benefits of a low FODMAP (LFM) diet in reducing mast cell activation and improving colonic barrier function. The study provides new insights into the microbiome’s contribution to mast cell activation and its relevance for managing gastroinstestinal symptoms in IBS-D.
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