Les aliments naturellement sans gluten sont les légumes, les fruits, la viande, le poisson, les œufs, le riz, le maïs, le quinoa et les légumineuses. Le gluten se trouve dans le blé, l'orge, le seigle et leurs dérivés. Le vrai piège, c'est surtout dans les produits transformés — sauces, bouillons, plats préparés — où il se cache sous des noms qu'on ne soupçonne pas toujours.
When you start eating gluten-free, the first question is always the same: what can I actually eat? The answer is often more reassuring than you'd think — but there are real pitfalls, especially in packaged and processed foods. This guide lays it all out clearly: what's safe, what to avoid, and where gluten hides when you're not looking.
Naturally gluten-free foods
The good news is that the majority of whole, basic foods are naturally gluten-free. No processing, no additives — safe by nature.
Gluten-free grains and starches
Not all grains contain gluten. Here are the ones you can use freely:
Rice (white, brown, whole grain) in all its forms is the easiest base to build on. Corn — cornmeal, polenta, cornstarch — works well across many recipes. Quinoa, often called a grain but technically a seed, is protein-rich and versatile. Millet, buckwheat (despite the misleading name, it contains no gluten), rice flour, potato starch, and tapioca starch are all naturally safe options.
Did you know?
Buckwheat is called "black wheat" in some languages, but it has no relation to wheat whatsoever. It's naturally gluten-free and works well in crepes, galettes, and as an alternative flour. The potential issue is cross-contamination during processing — always check the label if you have celiac disease.
Animal proteins
All raw meats, poultry, and fish are gluten-free. Beef, chicken, pork, lamb, seafood, eggs — in their unprocessed form, they're completely safe.
What changes things is processing: industrial sausages, deli meats, breaded nuggets, imitation crab — gluten may have been added somewhere in the process.
Vegetables and fruits
All fresh vegetables are gluten-free, no exceptions. Same goes for fresh fruit. This is the simplest and safest part of a gluten-free diet.
Plain canned and frozen vegetables (no sauce, no seasoning mix) are generally fine — but a quick glance at the ingredient list never hurts.
Dairy products
Milk, natural cheeses, butter, heavy cream, and plain yogurt are gluten-free. Processed cheese spreads, flavoured yogurts, and some industrial dairy products may contain gluten-based additives — worth checking.
Legumes
Lentils, chickpeas, beans, fava beans — all raw legumes are naturally gluten-free. Chickpea flour, for example, is an excellent cooking alternative. It's dense, high in fibre and protein, and very well tolerated.
Foods that contain gluten — what to avoid
Grains to cut out
Four grains are directly involved: wheat (and all its derivatives — white flour, whole wheat flour, spelt, kamut, semolina, bulgur, couscous), barley, rye, and triticale (a wheat-rye hybrid).
Anything made from these grains contains gluten: regular bread, pasta, pizza, cookies, cakes, pastries, pies, crackers, breadcrumbs.
The obvious processed offenders
Some are obvious — bread, pasta, baked goods. But others catch people off guard:
Traditional beer is brewed from barley. Breakfast cereals (even the ones marketed as healthy) often contain wheat or malted barley. Granola bars, croutons, breadcrumbs — all concentrated sources of gluten.
The real traps: where gluten actually hides
This is where most people slip up. Even when you're careful about the obvious grains, gluten can sneak into products you'd never suspect.
Sauces and broths
Regular soy sauce contains wheat — it's one of the most common traps. Many barbecue sauces, salad dressings, and industrial ketchups use gluten-based thickeners or flavourings. Store-bought bouillon cubes and powder are often formulated with wheat derivatives.
Common mistake
Using regular soy sauce in a marinade, assuming it's "natural" and therefore gluten-free. Traditional soy sauce is fermented with wheat. Gluten-free versions exist — and alternatives like Cannelle sauces and broths, made in a facility dedicated exclusively to gluten-free production, are a safe swap.
Ready-made meals and spice blends
Frozen meals, carton soups, and commercial spice blends can all contain wheat starch as a binder or anti-caking agent. All-in-one spice mixes (cajun blends, commercial curry powders) sometimes use wheat flour to prevent clumping.
Cross-contamination
For people with celiac disease, it's not just about ingredients — it's also about how and where a product is made. A product made with 100% gluten-free ingredients can still be contaminated if it's processed on shared lines with wheat.
That's why products made in a facility dedicated exclusively to gluten-free production — like Cannelle flours and starches — offer a level of safety that "gluten-free" products made in shared environments simply can't match.
Keep in mind
The label "may contain traces of gluten" isn't just a legal formality. For someone with celiac disease, it's a real warning sign. For someone avoiding gluten by choice or with mild sensitivity, it depends on their level of reaction. Learning to read labels is the single most important skill in gluten-free eating.
Medications and supplements
Less commonly known: some medications and dietary supplements use wheat starch as a filler or binding agent. If you have celiac disease and take regular medications, it's worth raising the question with your pharmacist.
Quick reference summary
✔ Safe without restriction: fresh vegetables, fresh fruit, raw meat and fish, eggs, rice, corn, quinoa, millet, buckwheat, potatoes, legumes, natural cheeses, oils, butter.
⚠ Check the label depending on the brand: processed dairy, deli meats, canned goods with sauce, frozen prepared meals, broths, sauces.
✖ Avoid: wheat in all forms, barley, rye, spelt, kamut, regular beer, bread, pasta, couscous, bulgur, breadcrumbs, semolina.
Frequently asked questions
Is rice gluten-free? Yes, rice is naturally gluten-free in all its forms — white, brown, whole grain, and as flour. It's one of the safest and most versatile bases for a gluten-free diet.
Is oats gluten-free? Pure oats don't contain gluten, but they're almost always cross-contaminated with wheat during harvesting or processing. People with celiac disease should only use certified gluten-free oats — and even then, some celiacs react to a similar protein in oats called avenin.
Is corn gluten-free? Yes. Corn, cornstarch, and polenta are naturally gluten-free.
Is soy sauce gluten-free? Regular soy sauce contains wheat and is not gluten-free. Alternatives include tamari (check the label) or certified gluten-free soy sauces.
How can I tell if a product is truly gluten-free? Read the ingredient list, check for any wheat allergen warning, and look for information about where the product was made (dedicated facility vs. shared environment). Products made in an exclusively gluten-free facility offer the strongest guarantee for people with celiac disease.