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soy sauce
Condiments & Sauces
Is soy sauce high in fructans?
Is soy sauce 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 soy sauce contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where soy sauce fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about soy sauce
Most people are surprised that standard soy sauce is brewed with wheat, so it grades as containing gluten and is not safe for celiac disease. On top of that it is fermented, which makes it very high in histamine and high in tyramine, the trigger that matters if you take an MAOI medication or get migraines from aged and fermented foods.
Watch for
- Brewed with wheat, so ordinary soy sauce contains gluten and is not celiac-safe (look for a certified gluten-free tamari instead)
- Very high in histamine from fermentation, a frequent flushing and headache trigger
- High in tyramine, relevant on MAOI medications and for tyramine-driven migraines
- A processed condiment that grades high in nitrites and pro-inflammatory
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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:
View full list
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.
Want personalized tracking?
Download Triggerbites to log meals, track symptoms, and discover your unique triggers.
Get the AppFAQ
Is soy sauce high in Fructans?
Fructans: low signal for most people.
Can I still eat soy sauce if I'm sensitive to Fructans?
Usually fine in normal portions.
What else should I check?
Check Histamine, Gluten, and Soy next for a fuller picture.