PRACTICAL GUIDES
Use the scanner with the label, not instead of it.
These short guides explain what a barcode screen can help with, what it cannot confirm, and where to look next on a food package. They are informational only and are not medical advice.
Use a barcode scanner safely
A simple process for checking a product without treating a database result as a guarantee.
Read gluten-free labels in the U.S.
What voluntary gluten-free claims mean and what still deserves a label check.
Oats, malt, and cross-contact
Why these areas need more attention than a simple word match can provide.
Why barcode data can be incomplete
How recipes, regional packaging, and missing data affect barcode results.
Celiac disease basics
What it is, why diagnosis matters, and where a barcode tool fits.
Frequently asked questions
Quick answers about barcode checks, labels, saved checks, and safety limits.
Want to understand the tool itself? Read how Celiac Check works and its limits.