Is citric acid gluten-free?
Citric acid is gluten-free. Despite the name suggesting citrus fruit, commercial citric acid is produced by fermenting the mold Aspergillus niger on a sugar substrate — typically corn, molasses, or sugar beet. It contains no gluten proteins and is safe for celiacs, per the FDA and Celiac Disease Foundation.
When it's safe
- The ingredient list shows "citric acid" or "E330"
- The product is a US, EU, or Canadian packaged food
When to avoid it
- The product is in a food that also contains wheat, barley, or malt — the citric acid is fine, check the rest
Not sure about a specific product?
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Download FreeFrequently asked questions
Is citric acid made from wheat?
No. Modern citric acid is produced via fungal fermentation on corn or sugar beet substrate. Wheat-based citric acid is not commercially viable and is not used by any major producer.
Is citric acid in soda or candy gluten-free?
Yes. The citric acid in soft drinks, candy, and canned foods is gluten-free. These products may have other gluten concerns, but citric acid itself is always safe.