Can I Eat Sourdough with IBS?

Rebecca Taylor
Reviewed by Rebecca Taylor, Registered Nutritionist (RNutr)
Quick Answer

True sourdough has lower fructans due to fermentation. Better tolerated than regular wheat bread, but still contains some FODMAPs.

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Moderate FODMAPSafe: 2 slices true sourdough

What Our Protocols Say

Bloating-DominantTest carefully

Better than regular bread, but still has some fructans.

Tip: Must be traditional slow-fermented sourdough (24+ hours).

Constipation (IBS-C)Small portions

May be tolerated better than regular bread.

Tip: Look for artisan bakery sourdough.

Diarrhea (IBS-D)May be binding

Bread can help firm stools; sourdough is gentler.

Tip: GF bread is safer if sensitive to wheat.

Mixed (IBS-M)Individual testing

Some tolerate well, others don't.

Tip: Try 1 slice first to test response.

Post-SIBO RecoveryLimit or avoid

Still has fermentable carbs despite lower amount.

Tip: GF bread is safer during recovery.

Stress-TriggeredTest tolerance

Stress can reduce tolerance to any wheat.

Tip: May be better tolerated than regular bread.

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Medical Disclaimer

This information is for educational purposes only and is not intended as medical advice. Always consult with a qualified healthcare provider before making changes to your diet.

Last updated: January 29, 2025 | Reviewed by Rebecca Taylor, RNutr