Gluten
Gluten Ingredients and Foods List: What to Look For on Labels
Know the grain names, ingredient terms, and food categories that need a closer label review when avoiding gluten.
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Gluten guides: ingredients, grains and label claims
Where gluten appears on ingredient lists, which grains contain it, what a gluten-free claim means, and how celiac disease differs from wheat allergy.
Gluten is a group of proteins found in wheat, barley and rye. Wheat is one of the major food allergens that U.S. labels must declare, but barley and rye are not, so gluten can appear under names such as malt or brewer's yeast without a Contains statement.
These guides cover gluten-containing ingredients, grains and lookalikes, oats and cross-contact, and what the FDA gluten-free claim does and does not promise.
Oats and gluten
Are Oats Gluten-Free? What Labels Say
Learn how oats can be labeled gluten-free, why cross-contact is common, and what purity-protocol oats mean on U.S. packages.
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Gluten basics
Celiac Disease, Gluten Sensitivity and Wheat Allergy
Understand how celiac disease, gluten sensitivity, and wheat allergy differ, and what U.S. labels do and do not declare.
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Gluten
Hidden Sources of Gluten in Everyday Foods
Learn where gluten can hide in everyday foods, including soy sauce, malt vinegar, seasonings, soups, meats, and beer.
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Gluten labels
Gluten-Free Label Claims Explained
Understand FDA gluten-free label claims, the 20 ppm limit, wheat-free wording, Contains statements, and certification marks.
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Make food checks easier
Scan an ingredient list for gluten sources with Food Checker, then confirm with the label and the manufacturer.