sourdough bread
Grains
Is sourdough bread high in fructans?
Is sourdough bread high or low in fructans? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.
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Sensitivity notes
Why fructans food checker matters
Fructans are chains of fructose molecules found in wheat, onions, garlic, and many other foods. They're a type of FODMAP that can cause digestive symptoms in sensitive individuals because they're not well absorbed in the small intestine.
- Garlic-infused oil is low-FODMAP since fructans don't dissolve in oil
- Green parts of leeks and scallions are lower in fructans
- Sourdough bread may be better tolerated than regular wheat bread
- Spelt and ancient grains still contain fructans despite marketing claims
- Portion size matters - small amounts may be tolerable
Sensitivities
What sourdough bread contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where sourdough bread fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about sourdough bread
Genuine long-fermented sourdough is the rare bread that is easier on a sensitive gut. The slow ferment lets bacteria break down 70 to 90 percent of the wheat fructans, which is why Monash rates real sourdough as lower FODMAP than standard wheat bread. But lower FODMAP is not the whole story: sourdough is still wheat, so it contains gluten, and the fermentation actually raises its tyramine, a trigger for migraine and for anyone on an MAOI.
Watch for
- Still made from wheat, so it contains gluten and is off limits for celiac disease and gluten sensitivity, low FODMAP or not
- The long fermentation raises tyramine, which can trigger migraine or a dangerous spike for people taking MAOI medication
- Only a true 16 to 24 hour ferment lowers the fructans: supermarket loaves flavored with sourdough but proofed quickly stay high FODMAP
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Fructans Guide
Everything you need to know about fructans sensitivity and smart food choices.
Fructans are chains of fructose molecules found in wheat, onions, garlic, and many other foods. They're a type of FODMAP that can cause digestive symptoms in sensitive individuals because they're not well absorbed in the small intestine.
Sensitivity varies widely. What triggers one person may be fine for another. Track your reactions to find your personal threshold.
These foods are generally well-tolerated for Fructans sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in fructans and may trigger symptoms:
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If you're sensitive to Fructans, consider these strategies:
- 1Garlic-infused oil is low-FODMAP since fructans don't dissolve in oil
- 2Green parts of leeks and scallions are lower in fructans
- 3Sourdough bread may be better tolerated than regular wheat bread
- 4Spelt and ancient grains still contain fructans despite marketing claims
- 5Portion size matters - small amounts may be tolerable
Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.
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Get the AppFAQ
Is sourdough bread high in Fructans?
Fructans: moderate signal - portion size matters.
Can I still eat sourdough bread if I'm sensitive to Fructans?
Try smaller portions and space it out.
What else should I check?
Check Gluten, AIP, and EoE Compatible next for a fuller picture.