Low-FODMAP diet

How it works: Reducing dietary FODMAPs (fermentable oligo-,di-,mono-saccharides and polyols) decreases osmotically active short chain sugars and carbs reaching the distal small bowel and colon where they are broken down by bacteria producing short chain fatty acids and gases which can trigger GI symptoms in certain IBS patients who tend to have a sensitive gut.

Which symptoms does it help: Pain, bloating, flatulence, and to a lesser degree diarrhea.

How long it takes to see a benefit: 2-6 weeks.

FDA approved: N/A

Dosage: N/A

Special considerations or risks: N/A

Most common side effects: Generally well tolerated.

Recommendation: ACG suggests a low FODMAP diet for overall symptom improvement in IBS patients.