Fiber causes bloating and should be avoided if you have digestive issues
evidence
The Claim
People with IBS or digestive sensitivity often avoid fiber entirely, believing it will worsen their symptoms. Some have experienced bloating when increasing fiber and conclude fiber is bad for digestion.
Origin
This belief comes from real experiences — rapid fiber increase does cause temporary gas and bloating. Many IBS patients were told to avoid fiber by older dietary guidelines. The low-FODMAP diet movement reinforced fiber avoidance.
What Science Says
Research shows that soluble fiber (especially psyllium) actually improves IBS symptoms when introduced gradually. A meta-analysis in the American Journal of Gastroenterology found that soluble fiber significantly reduced IBS symptom severity. The key is gradual introduction (increase by 5g/week) and choosing the right type — soluble fiber is well-tolerated while insoluble fiber (wheat bran) can worsen symptoms in some IBS patients.
Verdict
Mostly False