Work

Irritable bowel syndrome in the community: a cross-sectional study looking at patient experiences and challenges with the low FODMAP diet

Year: 2026

Type: article

Abstract: While a diet low in fermentable oligosaccharides, disaccharides, monosaccharides and polyols (FODMAP) is the most evidence-based dietary therapy for irritable bowel syndrome (IBS), data on patient experiences with the low FODMAP diet (LFD) remains sparse. Even less information exists examining patients' experiences with the re-introduction and personalization phases of LFD, especially in the community setting. This cross-sectional study surveyed 387 participants from the mailing list of the International Foundation for Functional Gastrointestinal Disorders (IFFGD) about their experiences with LFD. Additionally, focus groups collected qualitative data about participants' experiences with the LFD diet. Despite 70% of participants reporting perceived improvement of symptoms with FODMAP restriction, 70% of participants reported that LFD was either somewhat or extremely difficult to follow and 59% of participants reported continuing the restriction phase beyond 8 weeks. 41% of participants found the re-introduction phase somewhat or extremely difficult and two-thirds took >1 month to complete it. Only 30% and 25% of participants worked with a dietitian for restriction and re-introduction phases, with many receiving their information online or via app. Finally, over 80% of participants reported they would be interested in a simplified version of the LFD. While the LFD led to perceived symptom improvement in most IBS patients, it is associated with limitations, including its complexity and restrictiveness. Furthermore, food-related fear and anxiety, particularly during restriction and reintroduction phases, pose significant challenges. These findings underscore the practical limitations LFD has, and participants expressed a strong interest in a simpler, more convenient alternative.

Source: Frontiers in Gastroenterology

DOI: 10.3389/fgstr.2026.1930300