Back to Polyols food checker
soy protein
Legumes/Pulses
Is soy protein high in polyols?
Is soy protein high or low in polyols? 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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Compare soy protein across criteria
Sensitivity notes
Why polyols food checker matters
Polyols (sugar alcohols) are found naturally in some fruits and vegetables, and are used as artificial sweeteners. They're poorly absorbed and can cause digestive symptoms, especially in IBS sufferers.
- Avoid sugar-free products with sorbitol, mannitol, xylitol, maltitol
- Stone fruits are naturally high in polyols
- Cooking doesn't reduce polyol content
- Avocado portion size matters - small amounts may be fine
- Cauliflower and mushrooms are common triggers
Sensitivities
What soy protein contains
FODMAPs
Histamine & Amines
Plant compounds
Irritants
Additives
Allergens
Diet fit
Where soy protein fits
Therapeutic diets
Lifestyle diets
Religious diets
What to know about soy protein
Soy protein is the rare soy food that grades clean on FODMAPs (A). Extraction strips the fermentable sugars that make whole soybeans a problem, so the isolate in a shake or a veggie burger behaves nothing like a bowl of edamame. What survives processing is everything else about soy. It is one of the big allergens and one of the six foods removed for EoE (E). It runs high on oxalate (D), roughly 40 to 60 mg per scoop, high on nickel (D), and it keeps soy’s reputation as a histamine liberator (C). A moderate free glutamate grade (C) and a low but real sulfite residue from processing (B) round out a profile that is friendlier to the gut than to the immune system.
Watch for
- Soy is a declarable allergen and one of the six foods in an EoE elimination diet.The isolate is still soy in the way that matters immunologically.
- High oxalate (D).Soy protein isolate carries far more oxalate than tofu or soy milk, and textured soy protein runs higher still, which matters for anyone managing kidney stones.
- High nickel (D).Low nickel diet guidance names soy protein powder specifically, and it is one of the harder places to spot because powder hides in bars and meat alternatives.
- A recognised histamine liberator (C), so it can prompt flushing or hives without containing much histamine itself.
- Low FODMAP applies to the plain isolate.Flavoured powders and bars often add inulin or polyol sweeteners that put the FODMAPs straight back in.
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Polyols Guide
Everything you need to know about polyols sensitivity and smart food choices.
Polyols (sugar alcohols) are found naturally in some fruits and vegetables, and are used as artificial sweeteners. They're poorly absorbed and can cause digestive symptoms, especially in IBS sufferers.
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 Polyols sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in polyols and may trigger symptoms:
View full list
If you're sensitive to Polyols, consider these strategies:
- 1Avoid sugar-free products with sorbitol, mannitol, xylitol, maltitol
- 2Stone fruits are naturally high in polyols
- 3Cooking doesn't reduce polyol content
- 4Avocado portion size matters - small amounts may be fine
- 5Cauliflower and mushrooms are common triggers
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 protein high in Polyols?
Polyols: low signal for most people.
Can I still eat soy protein if I'm sensitive to Polyols?
Usually fine in normal portions.
What else should I check?
Check Soy, AIP, and EoE Compatible next for a fuller picture.