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.
Download FreeFrequently 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.