How to read a food label for gluten

Reading a label for gluten is a repeatable checklist. Once you've got it, you can clear a product in about ten seconds.

1. Check the “Contains” line

US law (FALCPA) requires wheat to be declared, usually in a bold “Contains: Wheat” statement. If you see it, stop — it's out. Note the gap: the law covers wheat, not barley or rye, so those can hide in the ingredient list.

2. Scan for the grain words

In the ingredients, look for: wheat, barley, rye, malt, brewer's yeast, oats (unless gluten-free), and derivatives like “wheat starch” or “malt extract.” These are exactly the terms our deterministic ruleset screens for — you can read the full list on our ruleset page.

3. Trust “Certified Gluten-Free”

A certification mark (GFCO, for example) means the product is tested to under 20 parts per million of gluten — the threshold research supports as safe for most celiacs. A certified product is the strongest signal you can get.

4. Watch the soft phrases

• “May contain wheat” / “made on shared equipment” — a real cross-contact risk. This is a personal-risk call.
• “Wheat-free” is NOT “gluten-free.” Wheat-free products can still contain barley or rye.
• “Natural flavors” — usually fine, occasionally hides barley-based malt. If it matters, verify.

5. When the label isn't enough

Formulations change and labels lag. That's the whole reason we exist: we keep a verdict archive, re-check labels we've verified, and send alerts when something changes. Always check the current label — and let us do the monitoring.