Ingredient dictionary
Soy protein isolate on a food label: it contains soy
Soy protein isolate is a kind of soy protein. It contains soy, so the allergen labelling rules apply. It is vegan. Open Food Facts finds it in 7,372 products, most often in biscuits and cakes.
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Soy protein isolate=soy
Does soy protein isolate contain an allergen?
Yes. Soy protein isolate contains soy: labels in the US, the UK, Europe and the Gulf must declare it.
| Allergen | US | UK and Europe | Gulf |
|---|---|---|---|
| Soybeans | Required | Required | Required |
Is soy protein isolate vegan?
Yes. Soy protein isolate is vegan and vegetarian: Open Food Facts records nothing from an animal in it.
A pack can differ from the usual recipe: the app reads the label in your hand.
What other names does soy protein isolate have on a label?
In English soy protein isolate can also read “soya protein isolate” or “isolated soy protein”. On European labels it is “isolat de protéine de soja” in French, “Sojaproteinisolat” in German and “Aislado de proteína de soja” in Spanish. The other 5 languages are listed below.
- French
- isolat de protéine de soja
- German
- Sojaproteinisolat, Sojaeiweißisolat
- Spanish
- Aislado de proteína de soja
- Italian
- proteine isolate di soia, proteine di soia isolate
- Polish
- izolowane białko sojowe, izolat białka sojowego
- Finnish
- soijaproteiini-isolaatti
- Czech
- izolovaná sojová bílkovina
- Croatian
- izolat proteina soje, izolat sojinih bjelančevina
Which foods contain soy protein isolate?
Open Food Facts lists soy protein isolate in the ingredients of 7,372 products, most often biscuits and cakes, ready meals and sweetened drinks. Most of them are sold in the United States, France and the United Kingdom.
Products with it, by country of sale: United States 5,339 · France 494 · United Kingdom 370 · Germany 281.
Counted on 13 October 2026 from the Open Food Facts product database, which volunteers fill from real packs: it shows where soy protein isolate turns up, not how much of the market it is.
What kind of ingredient is soy protein isolate?
Soy protein isolate is a kind of soy protein.
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Sources
An allergen is stated only when two of three checks agree: the Open Food Facts record, Bravoora’s label checker, and the ingredient’s own name or family (oat flour is oats, a cheese is milk). Every name where they disagree waits for a person to review it.
- Open Food Facts: Soy protein isolate
- Open Food Facts: ingredients taxonomy (names, family tree, allergen and vegan flags), ODbL
- Open Food Facts: product database, 4,535,553 products, read 13 October 2026, ODbL
- European Union: Regulation 1169/2011 on food information to consumers, Annex II
- UK Food Standards Agency: Allergen guidance for food businesses (the 14 allergens)
- US FDA: Questions and Answers Regarding Food Allergen Labeling, Edition 5 (January 2025)
Contains information from Open Food Facts, which is made available here under the Open Database License (ODbL). Read the licence · Download this dictionary’s data · How we check
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