onion
Vegetables
Is onion high in gos?
See gos status for onion alongside other trigger notes.
Related checkers
Compare onion across criteria
Sensitivity notes
Why gos food checker matters
Galacto-oligosaccharides (GOS) are carbohydrates found mainly in legumes and some vegetables. They're a FODMAP that can ferment in the gut, causing bloating and discomfort in sensitive people.
- Canned and rinsed legumes are lower in GOS than dried
- Start with smaller portions and build up tolerance
- Some people find beano-type enzymes helpful
Triggers
Diets
Serving size, prep, and portion notes for onion
Aromatic base that adds depth to soups, sauces, and sautes.
Typical serving
1/4 medium onion (about 50 g)
Best for
saute bases / soups / roasted trays
Prep notes
- Sweat slowly to mellow the bite.
- Slice thinly for quick pickles or salads.
- Rinse raw slices for a lighter flavor.
Portion notes
- A quarter onion is plenty for most pans.
- Thin slices distribute flavor across bowls.
- One tablespoon minced adds aroma without bulk.
Watch for
raw bite in salads / over-browning at high heat
Explore related in Vegetables
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GOS Guide
Everything you need to know about gos sensitivity and smart food choices.
Galacto-oligosaccharides (GOS) are carbohydrates found mainly in legumes and some vegetables. They're a FODMAP that can ferment in the gut, causing bloating and discomfort in sensitive people.
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 GOS sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in gos and may trigger symptoms:
View full list
If you're sensitive to GOS, consider these strategies:
- 1Canned and rinsed legumes are lower in GOS than dried
- 2Start with smaller portions and build up tolerance
- 3Some people find beano-type enzymes helpful
- 4Firm tofu is lower in GOS than silken tofu
- 5Sprouted legumes may be better tolerated
Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.
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