Is it gluten-free?
Quick, sourced answers to the most common "is X gluten-free" questions. Each page gives a definitive verdict, the caveats that matter, and the exact label phrasing to look for. Scan any product with GF Scanner to verify in seconds.
Are oats gluten-free?
Oats are naturally gluten-free, but standard oats are almost always cross-contaminated with wheat during growing, harvesting, and milling. O…
No, contains glutenIs soy sauce gluten-free?
Most traditional soy sauce contains wheat as a primary ingredient and is not gluten-free. Safe alternatives are tamari (usually wheat-free)…
It dependsIs tamari gluten-free?
Tamari is usually gluten-free — it's traditionally brewed from soybeans without wheat, unlike regular soy sauce. But "usually" isn't "always…
Yes, usually gluten-freeIs maltodextrin gluten-free?
Maltodextrin is gluten-free despite its name. In the United States it's almost always made from corn, rice, or potato, and even when derived…
Yes, usually gluten-freeIs dextrin gluten-free?
Dextrin is usually gluten-free. It's most often made from corn, tapioca, or potato, and while wheat-derived dextrin does exist, US FALCPA ru…
Yes, usually gluten-freeIs modified food starch gluten-free?
Modified food starch is usually gluten-free. In the US, it's most often made from corn, and if wheat is used, FALCPA requires "wheat" to app…
Yes, usually gluten-freeIs cornstarch gluten-free?
Cornstarch is gluten-free. It's made from the endosperm of corn kernels and contains no gluten proteins. Major brands (Argo, Clabber Girl, B…
Yes, usually gluten-freeAre natural flavors gluten-free?
Natural flavors are usually gluten-free. Under US FALCPA, any wheat used in natural flavors must be disclosed on the label. Barley and rye a…
Yes, usually gluten-freeIs caramel color gluten-free?
Caramel color is gluten-free. In the US and Europe it's almost always made from corn, cane sugar, or beet sugar — not wheat or barley. Even…
Yes, usually gluten-freeIs 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…
Yes, usually gluten-freeIs MSG gluten-free?
MSG (monosodium glutamate) is gluten-free. Commercial MSG is produced by fermenting sugar from corn, sugar beet, or sugar cane — never from…
Yes, usually gluten-freeIs xanthan gum gluten-free?
Xanthan gum is gluten-free. It's produced by fermenting sugar (usually from corn, soy, or dairy) with the bacterium Xanthomonas campestris.…
It dependsIs yeast gluten-free?
Yeast is usually gluten-free — but the source matters. Baker's yeast, active dry yeast, instant yeast, and nutritional yeast are all gluten-…
No, contains glutenIs malt vinegar gluten-free?
Malt vinegar is not gluten-free. It's brewed from barley malt and retains detectable gluten, which is why Celiac Disease Foundation and Beyo…
Yes, usually gluten-freeIs distilled vinegar gluten-free?
Distilled vinegar is gluten-free — even when made from wheat or barley. The distillation process removes gluten proteins below the FDA's 20…
No, contains glutenIs beer gluten-free?
Most beer is brewed from barley malt and contains gluten — unsafe for celiacs. Gluten-free beers made from sorghum, rice, millet, or buckwhe…
Yes, usually gluten-freeIs vanilla extract gluten-free?
Vanilla extract is gluten-free. It's made from vanilla beans steeped in distilled alcohol, and distillation removes any gluten from the alco…
Yes, usually gluten-freeIs chocolate gluten-free?
Pure chocolate is naturally gluten-free — cocoa, cocoa butter, sugar, and milk contain no gluten. The risk is in what's added: barley malt f…
Yes, usually gluten-freeIs 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…
Yes, usually gluten-freeIs rice gluten-free?
All pure rice is naturally gluten-free — white, brown, jasmine, basmati, arborio, wild rice, and sticky rice. The main risks are flavored ri…
Yes, usually gluten-freeIs quinoa gluten-free?
Quinoa is naturally gluten-free. It's a pseudo-grain (actually a seed) from a plant unrelated to wheat, barley, or rye. The main risk is cro…
Yes, usually gluten-freeIs buckwheat gluten-free?
Buckwheat is naturally gluten-free despite the "wheat" in its name. It's actually a pseudo-grain related to rhubarb and sorrel, not wheat. P…
No, contains glutenIs couscous gluten-free?
Couscous is not gluten-free. Despite looking like a tiny grain, traditional couscous is actually small pasta balls rolled from semolina whea…
No, contains glutenIs spelt gluten-free?
Spelt is not gluten-free. It's an ancient wheat variety (Triticum spelta) that contains the same gluten proteins as modern wheat, including…
No, contains glutenIs seitan gluten-free?
Seitan is not gluten-free. It's made from vital wheat gluten — the wheat protein that celiacs must avoid — and is effectively pure gluten sh…
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