Original Investigation

Bowel-Related Symptoms and Dietary Fiber Intake in Colorectal Cancer Survivors

JAMA Network Open 10.1001/jamanetworkopen.2025.42147

November 10, 2025 at 11:00 AM EST

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What is the prevalence of bowel-related symptoms and the association between dietary fiber intake and these symptoms up to 5 years after colorectal cancer (CRC) diagnosis?In this cohort study of 1751 CRC survivors, the prevalence of bowel-related symptoms was 47% at 6 months, 41% at 2 years, and 36% at 5 years after CRC diagnosis. Higher dietary fiber intake was associated with a lower prevalence of diarrhea.The finding of prevalent long-term bowel-related symptoms in CRC survivors suggests a need for symptom management, with a potential role for dietary fiber intake.

Corresponding Author: Niels Klaassen-Dekker, MSc, Division of Human Nutrition and Health, Wageningen University niels.klaassen@wur.nl).

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