METHOD & LIMITS

How Celiac Check works

Celiac Check is a quick informational screen for a packaged-food listing. It is designed to help you start a label check—not to make the food decision for you.

What happens when you scan

Your device reads or you enter a barcode number. Celiac Check uses that number to request the matching product listing from Open Food Facts, a third-party food-product database. It then checks the available ingredient text for selected gluten-related terms and notes when the listing reports a gluten-free claim.

What a result means

A flagged result means the available listing contained a selected term. A result that finds no selected term means the listing did not show one of the terms the tool checks. A gluten-free result means the listing reported a gluten-free claim. None of these results confirms that a product is suitable for your needs.

The physical package is the final source for a shopping decision. Recipes, allergen statements, certifications, manufacturing practices, regional versions, and cross-contact information can change or be absent from a product database.

What the tool cannot know

Whether the listing matches the package in your hand or its current recipe.
Whether a manufacturer’s facility practices, certification, or cross-contact risk work for your individual needs.
Whether a food is medically appropriate for you, or whether you have celiac disease, an allergy, or another condition.

How to use it well

Scan the barcode to find the listing quickly.
Compare the product name and the current package ingredients, allergen statement, and claims.
If you need to avoid gluten for celiac disease, an allergy, or another medical reason, follow your clinician or dietitian’s advice and the package information.

Data and editorial approach

The scanner relies on third-party product information, including Open Food Facts. Celiac Check does not audit or guarantee that information. Our practical guides are original educational content built around authoritative public food-label and health resources; sources are linked on the relevant guide. We update this page and the guides when the tool or its safety information materially changes.