FREE TOOL
⚠️ Allergen & Diet Checker
Scan any ingredient list or recipe for the top 14 regulated allergens — with the exact offending words highlighted.
Screen a recipe or ingredient list
How it works
The free path never touches a paid AI service. Results come from a bundled static nutrition snapshot (typical USDA-style values per 100 g for 150+ ingredients) held in SQLite, plus deterministic scoring engines. That's why answers are instant and the free tier stays free.
Is this a medical guarantee?
No. This is an informational screening tool built on an alias dictionary — it cannot catch cross-contamination or every hidden source. Always confirm with the restaurant or manufacturer.
Which allergens does it check?
Dairy, eggs, gluten, peanuts, tree nuts, soya, fish, shellfish, sesame, celery, mustard, lupin and sulphites — the top 14 regulated set.
What do CAUTION flags mean?
A caution word (like 'natural flavour' or 'oats' for gluten) means it could not be ruled out — investigate before serving.