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🌰 Tree Nuts allergy: label names, hidden sources & scanning
Tree nuts — almonds, hazelnuts, walnuts, cashews, pistachios and more — are distinct from peanuts (a legume), though many people react to both. Nut pastes, flours, and oils spread tree nuts across bakery, confectionery, and even savoury products.
Hidden label names our scanner matches
An ingredient list can contain tree nuts without ever using the word. These are the actual terms Scallergy's matching engine checks — the same list the app uses when it scans a barcode:
Common derivatives
Where tree nuts commonly hides
- chocolate and pralines
- granola, muesli and cereal bars
- pesto (pine nuts, cashews)
- nut milks and spreads
- baked goods and marzipan
- some liqueurs (amaretto)
How Scallergy verdicts tree nuts
Avoid — tree nuts (or one of the label names above) appears in the product's ingredient list.
Caution — the product carries a “may contain” / cross-contamination warning for it.
Unknown — we don't have trustworthy ingredient data, and we say so instead of guessing. The verdict is always driven by what's in the product; the severity you set in your profile is shown as context.
Scan for tree nuts in seconds
Set tree nuts in your allergen profile once — every barcode scan checks all 28+ label names above automatically. Free, independent, no ads.
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Frequently asked questions
Which label names mean tree nuts?
Beyond the word “tree nuts” itself, look for terms like almond, almonds, cashew, cashews, walnut, walnuts. These are the exact terms Scallergy's scanner matches when it checks an ingredient list.
Does tree nuts have to be declared on the label?
Yes — in the EU (Regulation 1169/2011, Annex II) and the US (FALCPA/FASTER Act) tree nuts must be emphasised in the ingredient list of prepacked food.
What does “may contain tree nuts” mean?
“May contain” is a voluntary cross-contamination warning: the product doesn't list it as an ingredient, but it is made where contact is possible. Scallergy shows these as a Caution verdict — distinct from Avoid, which means the allergen is actually in the ingredient list.
Can Scallergy guarantee a product is tree nuts-free?
No — no app can. Scallergy checks ingredient data from USDA FoodData Central, Open Food Facts, and community submissions, shows its source and an honest “Unknown” when data is thin, and is assistive only: always check the printed label and follow your allergist's advice.
Related allergens
Scallergy is assistive, not medical advice. Ingredient data can be incomplete or out of date — always check the physical label and consult an allergist about your allergies. Sources: EU Regulation 1169/2011 (Annex II); US FALCPA (2004) and FASTER Act (2021); our data sources.