About
Make sense of what's on your plate.
Intolerance Checker is a free, independent reference for living with food intolerances — search any food, see which intolerances it can trigger, and understand why.
It started with a simple frustration. When several intolerances pile up in one household, every grocery run turns into detective work: labels are cryptic, advice online contradicts itself, and most tools ask for your data before they help.
So we built the opposite. An open, science-anchored database that anyone can search for free — with clear tolerance levels for hundreds of foods and plain-language explanations for each intolerance. No account, no noise, no agenda.
What we stand for
Independent & free
No ads, no sponsored results, no paywall on the database. The information is the product.
Private by default
Browse without an account. We don't track you or sell data — neither on the web nor in the app.
Anchored in science
Tolerance levels and intolerance articles are built from referenced, peer-reviewed guidance — not anecdotes.
The companion app
Take it with you — meet Yllo
Intolerance Checker lives on the web, for research at home. Yllo is its companion app: scan any product's barcode in the store and get an instant verdict for your own intolerance profile.