soy protein
Legumes/Pulses
Is soy protein high in lactose?
Is soy protein high or low in lactose? 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 lactose food checker matters
Lactose is the natural sugar in milk and dairy products. People with lactose intolerance lack sufficient lactase enzyme to digest it, leading to bloating, gas, and digestive discomfort after consuming dairy.
- Try lactose-free dairy products - they're real dairy with lactase added
- Hard aged cheeses are naturally lower in lactose
- Lactase enzyme supplements can help when eating dairy
- Yogurt and kefir may be better tolerated due to probiotics
- Your tolerance level is personal - some can handle small amounts
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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Lactose Guide
Everything you need to know about lactose sensitivity and smart food choices.
Lactose is the natural sugar in milk and dairy products. People with lactose intolerance lack sufficient lactase enzyme to digest it, leading to bloating, gas, and digestive discomfort after consuming dairy.
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 Lactose sensitivity:
View all safe options
These foods have moderate levels and may be tolerated in small amounts:
These foods are high in lactose and may trigger symptoms:
View full list
If you're sensitive to Lactose, consider these strategies:
- 1Try lactose-free dairy products - they're real dairy with lactase added
- 2Hard aged cheeses are naturally lower in lactose
- 3Lactase enzyme supplements can help when eating dairy
- 4Yogurt and kefir may be better tolerated due to probiotics
- 5Your tolerance level is personal - some can handle small amounts
Pro tip: Keep a food diary to track your reactions. The Triggerbites app makes this easy with automatic pattern detection.
Want personalized tracking?
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Get the AppFAQ
Is soy protein high in Lactose?
Lactose: low signal for most people.
Can I still eat soy protein if I'm sensitive to Lactose?
Usually fine in normal portions.
What else should I check?
Check Soy, AIP, and EoE Compatible next for a fuller picture.