soy sauce
Condiments & Sauces
Is soy sauce high in low fermentation?
Find out whether soy sauce is high or low in low fermentation, see its exact rating, and check its FODMAP, salicylate, oxalate and diet compatibility all in one place.
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Sensitivity notes
Why low fermentation food checker matters
SIBO (Small Intestinal Bacterial Overgrowth) diets focus on reducing fermentable foods that feed bacteria in the small intestine. Low-fermentation foods help manage symptoms like bloating, gas, and abdominal discomfort.
- Low-fermentation eating reduces food for overgrown bacteria
- Meal spacing (4-5 hours) allows the MMC to clear the gut
- Avoid grazing - structured meals are better
Triggers
Diets
Serving size, prep, and portion notes for 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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Low Fermentation Guide
Everything you need to know about low fermentation sensitivity and smart food choices.
SIBO (Small Intestinal Bacterial Overgrowth) diets focus on reducing fermentable foods that feed bacteria in the small intestine. Low-fermentation foods help manage symptoms like bloating, gas, and abdominal discomfort.
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 Low Fermentation sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in low fermentation and may trigger symptoms:
View full list
If you're sensitive to Low Fermentation, consider these strategies:
- 1Low-fermentation eating reduces food for overgrown bacteria
- 2Meal spacing (4-5 hours) allows the MMC to clear the gut
- 3Avoid grazing - structured meals are better
- 4Some find the elemental diet helpful under medical supervision
- 5Address underlying causes with your healthcare provider
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 soy sauce high in Low Fermentation?
Low Fermentation: low signal for most people.
Can I still eat soy sauce if I'm sensitive to Low Fermentation?
Usually fine in normal portions.
What else should I check?
Check Histamine, Gluten, and Nitrites next for a fuller picture.