Irritable bowel syndrome and diet

Area of Science:

• Gastroenterology
• Dietary Science
• Gut-Brain Axis Research

Background:

• Irritable Bowel Syndrome (IBS) is a prevalent functional gastrointestinal disorder (FGID) causing abdominal pain and altered bowel habits.
• IBS is diagnosed using Rome IV criteria, excluding alarm features.
• Many IBS patients identify food triggers and alter their diet to manage symptoms.

Purpose of the Study:

• To review the role of dietary interventions in managing Irritable Bowel Syndrome (IBS).
• To evaluate the efficacy and implications of a low Fermentable Oligo-, Di-, and Monosaccharides and Polyols (FODMAP) diet in IBS patients.
• To highlight the gut-brain interaction in FGIDs and the impact of diet.

Main Methods:

• Review of recent clinical studies and professional guidelines on dietary interventions for IBS.
• Analysis of the mechanisms by which low FODMAP diets affect gut contents and the gut-brain axis.
• Assessment of reported benefits on IBS symptoms and quality of life.

Main Results:

• Low FODMAP diets have demonstrated significant benefits in reducing IBS symptoms and improving quality of life.
• Dietary interventions modulate luminal gut contents, influencing chemosensing and enteroendocrine cells.
• Professional guidelines now recommend considering a low FODMAP diet for IBS patients.

Conclusions:

• Functional gastrointestinal disorders (FGIDs) like IBS are recognized as gut-brain disorders.
• Low FODMAP diets are effective in alleviating IBS symptoms, as shown in clinical trials.
• Long-term efficacy and potential nutritional side-effects of the low FODMAP diet require further investigation.