Common hidden gluten ingredients
The most common hidden gluten sources include: malt and malt extract (from barley), modified food starch (sometimes from wheat), hydrolyzed wheat protein, brewer's yeast, wheat germ oil, and triticale. These appear in everything from salad dressings to breakfast cereals.
Less obvious sources include certain types of caramel color (which can be derived from barley), dextrin (sometimes from wheat), and some artificial flavors and seasonings that use wheat as a carrier.
Surprising foods that often contain gluten
Soy sauce is one of the most common surprise gluten sources — traditional soy sauce is brewed with wheat. Processed meats like hot dogs and deli meats may contain wheat-based fillers. Even some medications and supplements use wheat starch as a binding agent.
Other unexpected sources include beer (brewed from barley), licorice candy (often made with wheat flour), pre-seasoned frozen vegetables, and many canned soups and gravies that use wheat flour as a thickener.
How AI identifies wheat derivatives
GF Scanner's AI doesn't just look for the word "wheat." It understands that "semolina" is wheat, that "malt" typically means barley, and that "seitan" is pure wheat gluten. It recognizes over 200 ingredient names associated with gluten.
The AI also considers context. For example, "modified food starch" could be from corn or wheat — but when it appears alongside other wheat-derived ingredients, the risk assessment changes. The app gives you this nuanced analysis rather than a simple yes or no.
Staying safe with processed foods
Processed foods are the highest risk category for hidden gluten because they combine many ingredients and often use wheat-derived additives for texture, flavor, or preservation. The more processed a food is, the more carefully its label needs to be checked.
GF Scanner makes it practical to check processed foods quickly. Rather than spending minutes reading tiny print on every package, scan the label in seconds and get a detailed breakdown of any gluten risks.
Find the Gluten Others Miss
Download GF Scanner free on iOS and detect hidden gluten in any food product.
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