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Background <p>Although pouchitis is the most common complication after ileal pouch-anal anastomosis (IPAA) for ulcerative colitis (UC), the influence of diet on pouchitis is poorly understood. Thus, evidence-based dietary recommendations after IPAA are limited.</p> Aims <p>We evaluated dietary intake in the period after the final stage of IPAA for UC and Body Mass Index (BMI) to identify potential associations with pouchitis.</p> Methods <p>We used the Dietary Screener Questionnaire (DSQ) to assess dietary intake among patients in a prospective cohort enrolled within 2&#xa0;weeks of the final stage of IPAA for UC. We compared food group and fiber intake of those who developed pouchitis within 12&#xa0;months of the final stage of IPAA with those who did not. These were also compared to the United States Department of Agriculture (USDA) recommended daily goals.</p> Results <p>Among 89 patients, there was no significant difference in individual fiber intake when comparing those who developed pouchitis and those who did not. In comparison with USDA guidelines, both groups (pouchitis and no pouchitis) exhibited decreased intake of several food groups, such as fruits, vegetables, fiber, and dairy. Patients who developed pouchitis had a significantly higher median body mass index (BMI) at the time of surgery compared to patients who did not develop pouchitis (median 29.2 vs. 24.8, <i>P</i> = 0.022).</p> Conclusions <p>In a prospective cohort, we identified no association between dietary intake and development of pouchitis within the first year after IPAA. However, elevated BMI may represent a unique target for intervention to prevent pouchitis occurrence.</p>

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Impact of Diet and Body Mass Index on the Development of Pouchitis in the First Year After Ileal Pouch-Anal Anastomosis

  • 期刊论文

  • 发表日期：

    2026年7月10日

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  • Sophia Goldbeck,
  • Chelsea Anderson,
  • Jennifer Barr,
  • Jordan Axelrad,
  • Millie D. Long,
  • Hans H. Herfarth,
  • Edward Barnes

摘要

Background

Although pouchitis is the most common complication after ileal pouch-anal anastomosis (IPAA) for ulcerative colitis (UC), the influence of diet on pouchitis is poorly understood. Thus, evidence-based dietary recommendations after IPAA are limited.

Aims

We evaluated dietary intake in the period after the final stage of IPAA for UC and Body Mass Index (BMI) to identify potential associations with pouchitis.

Methods

We used the Dietary Screener Questionnaire (DSQ) to assess dietary intake among patients in a prospective cohort enrolled within 2 weeks of the final stage of IPAA for UC. We compared food group and fiber intake of those who developed pouchitis within 12 months of the final stage of IPAA with those who did not. These were also compared to the United States Department of Agriculture (USDA) recommended daily goals.

Results

Among 89 patients, there was no significant difference in individual fiber intake when comparing those who developed pouchitis and those who did not. In comparison with USDA guidelines, both groups (pouchitis and no pouchitis) exhibited decreased intake of several food groups, such as fruits, vegetables, fiber, and dairy. Patients who developed pouchitis had a significantly higher median body mass index (BMI) at the time of surgery compared to patients who did not develop pouchitis (median 29.2 vs. 24.8, P = 0.022).

Conclusions

In a prospective cohort, we identified no association between dietary intake and development of pouchitis within the first year after IPAA. However, elevated BMI may represent a unique target for intervention to prevent pouchitis occurrence.