Is corn gluten-free?
Corn is naturally gluten-free. Plain corn, cornmeal, corn flour, popcorn, and hominy contain no gluten proteins. The main risks are flavored or seasoned corn products — chili-lime popcorn, cornbread mixes, corn chips with malt flavoring — where added ingredients may introduce gluten.
When it's safe
- The product is plain corn, popcorn, cornmeal, or corn flour
- The seasoning packet or flavoring lists no wheat, barley, or malt
- The brand is certified gluten-free (Bob's Red Mill GF, Arrowhead Mills, many tortilla brands)
When to avoid it
- The corn chips or popcorn contain "malt flavoring" or "wheat seasoning"
- The cornbread mix lists wheat flour as a bulking agent
- You're buying from bulk bins where cross-contamination is likely
Not sure about a specific product?
GF Scanner is an iOS app that scans barcodes and ingredient labels to detect gluten in seconds. It's free to download, includes 1 free barcode scan and forever-free offline ingredient-label text scanning, and offers a free trial for Pro barcode scanning and AI analysis. It works on packaged foods worldwide and supports 33 languages.
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Frequently asked questions
Is corn the same as 'corn gluten'?
No — the "gluten" in "corn gluten" refers to the protein zein, not the wheat gluten that causes celiac disease. Corn gluten is safe for celiacs.
Are corn tortillas gluten-free?
100% corn tortillas are gluten-free, but some brands blend corn with wheat flour. Check the ingredients list and look for a GF claim.
Is popcorn gluten-free?
Plain air-popped or kernel popcorn is gluten-free. Flavored microwave popcorn and movie-theater popcorn with flavor packets may contain gluten — check seasoning ingredients.
