
oyster sauce
Condiments & Sauces
Is oyster sauce high in lectin?
Is oyster sauce high or low in lectin? See its exact rating, how much counts as a portion, and its FODMAP, salicylate, oxalate and diet compatibility in one place.
Related checkers
Compare oyster sauce across criteria
Sensitivity notes
Why lectin food checker matters
Lectins are proteins found in many plant foods, especially legumes and grains. Some people follow low-lectin diets believing they reduce inflammation and digestive issues, though properly cooked foods have reduced lectin content.
- Proper cooking destroys most lectins - never eat raw beans
- Pressure cooking is highly effective at reducing lectins
- Peeling and deseeding reduces lectin content
- Fermentation can reduce lectins in some foods
- Sprouting may increase or decrease lectins depending on the food
Sensitivities
What oyster sauce contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where oyster sauce fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about oyster sauce
Oyster sauce is a thick, savory Chinese sauce cooked down from oyster extract, sugar and soy, and its triggers are less about histamine than about glutamate, FODMAPs and gluten. It is high in free glutamate, the umami compound that gives it that deep savory hit, high in FODMAPs from the sugars and thickeners used to build its body, and it is usually made with wheat, so it is not gluten free. If a stir-fry leaves you bloated, foggy or headachy, oyster sauce is a likely culprit even though it is not especially high in histamine.
Watch for
- High in free glutamate, the natural umami and MSG-like compound, which can trigger headache in glutamate-sensitive people
- High in FODMAPs, so it can cause bloating and gas in a sensitive or IBS gut
- Usually made with wheat, so standard versions are not gluten free: check labels if you are gluten sensitive or coeliac
- A poor fit for SIBO given the fermentable sugars and thickeners
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Lectin Guide
Everything you need to know about lectin sensitivity and smart food choices.
Lectins are proteins found in many plant foods, especially legumes and grains. Some people follow low-lectin diets believing they reduce inflammation and digestive issues, though properly cooked foods have reduced lectin content.
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 Lectin sensitivity:
View all safe optionsIf you're sensitive to Lectin, consider these strategies:
- 1Proper cooking destroys most lectins - never eat raw beans
- 2Pressure cooking is highly effective at reducing lectins
- 3Peeling and deseeding reduces lectin content
- 4Fermentation can reduce lectins in some foods
- 5Sprouting may increase or decrease lectins depending on the food
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 oyster sauce high in Lectin?
Lectin: moderate signal - portion size matters.
Can I still eat oyster sauce if I'm sensitive to Lectin?
Try smaller portions and space it out.
What else should I check?
Check Inflammation, Vegan, and Vegetarian next for a fuller picture.





