An algorithm for differentiating food antigen-related gastrointestinal symptoms

Area of Science:

• Gastroenterology
• Dietary interventions
• Patient-reported outcomes

Background:

• Irritable bowel syndrome (IBS) is frequently linked to food-related gastrointestinal disorders.
• Dietary management is a key consideration for IBS patients.

Purpose of the Study:

• To assess patient-reported outcomes of a dietary intervention for IBS.
• To understand the efficacy of a modified low FODMAP diet in IBS management.

Main Methods:

• Clinical audit of 149 IBS patients meeting Rome III-IV criteria.
• Implementation of a 6-week gluten and lactose-free diet (G/LFD).
• Recording of patient-reported outcomes and dietary adherence.

Main Results:

• 134 patients adhered optimally to the G/LFD, with most showing >70% improvement.
• 53% of patients became asymptomatic or nearly asymptomatic.
• Dietary intervention showed excellent results in normal BMI patients and good results in overweight/obese individuals.

Conclusions:

• Eliminating gluten and lactose is an effective IBS treatment, irrespective of specific triggers.
• Multidisciplinary team management and nutrition therapy can be cost-effective for IBS.
• The G/LFD approach offers a promising therapeutic option for IBS management.