Diet and Microbiota Modulation for Chronic Pouchitis: Evidence, Challenges, and Opportunities

Overview

Journal Nutrients

Date 2025 Jan 8

PMID 39770958

Authors

Pierluigi Puca

Angelo Del Gaudio

Guia Becherucci

Franco Sacchetti

Luigi Sofo

Loris Riccardo Lopetuso

Alfredo Papa

Giovanni Cammarota

Franco Scaldaferri

Affiliations

Soon will be listed here.

Abstract

Chronic pouchitis occurs in about 50% of patients undergoing a restorative proctocolectomy for ulcerative colitis. This affection represents a significant therapeutic challenge, particularly for symptomatic patients who do not respond to antibiotic treatments and biologic therapies. Several dietary approaches, including low FODMAP diets and the Mediterranean diet, have shown promising results in improving symptoms and disease burden. The rationale for dietary intervention lies in the reduction in inflammation and modulation of gut microbiota. However, conflicting results and methodological heterogeneity jeopardize the transition of these approaches from the field of research to clinical practice. Together with a nutritional approach, innovative methods of microbiota modulation, including probiotics and fecal microbiota transplantation, are emerging as safe and effective strategies in managing chronic pouchitis. This narrative review analyzes recent advancements in nutritional therapies and microbiota modulation as innovative and complementary approaches for managing chronic pouchitis. After examining microbiota modulation strategies, specifically the effectiveness of probiotics, prebiotics, and fecal microbiota transplantation in restoring microbial diversity and their potential role in alleviating symptoms, the review assesses the available clinical evidence concerning dietary interventions and their impact on gut microbiota. A comprehensive understanding of interventions aimed at modulating the microbiota is crucial for enhancing the effectiveness of conventional therapies. Such strategies may lead to significant improvements in patients' quality of life and their perception of the disease. However, the variability in microbiota composition, the use of restrictive diets, and the lack of standardized methods for evaluating these interventions remain significant challenges. Future research is essential to improve our understanding of the underlying mechanisms and optimize clinical application.

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