Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Synopsis: Dietary fiber has a scientifically supported, though nuanced, role in the management of Inflammatory Bowel Disorders (IBD), including Crohn’s Disease and Ulcerative Colitis. Numerous studies have shown that certain types of fiber, especially soluble fibers (like psyllium and oats), can be beneficial for some patients with IBD. Fiber is known to help regulate bowel movements, improve stool consistency, and promote the production of short-chain fatty acids (SCFAs) such as butyrate, which have anti-inflammatory effects and support gut health.

A systematic review published in Alimentary Pharmacology & Therapeutics (2017) concluded that dietary fiber supplementation may reduce disease activity and improve remission rates in Ulcerative Colitis, although evidence for Crohn’s Disease is less robust. Another review in Gastroenterology (2021) found that fiber can modulate the gut microbiota, fostering beneficial bacteria that may help maintain remission.

However, fiber is not universally recommended for all IBD patients, especially during acute flares or when strictures are present, due to the risk of exacerbating symptoms or causing obstruction. The current consensus is that individualized recommendations are necessary, and fiber is most beneficial for maintaining remission rather than treating active disease. Overall, the use of fiber in IBD is based on moderate scientific validation, with growing but not definitive evidence supporting its role in symptom management and gut health.

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