What are the obvious foods to avoid with celiac disease?

Start with the sources you can see coming. These are the grains that always contain gluten and the everyday foods made from them.

Which grains always contain gluten?

Four grains contain gluten by definition: wheat, barley, rye, and triticale (a wheat-rye hybrid). The NIDDK includes these as the grains to avoid on a gluten-free diet.

The tricky part is that wheat wears many names. All of the following are forms of wheat and contain gluten:

• Spelt

• Farro

• Kamut

• Semolina

• Durum

• Emmer

Seeing “organic,” “ancient grain,” or “multigrain” on a package does not make a product gluten-free. If any of these words appear in the ingredients, the food contains gluten.

Everyday products made from them

Once you know the grains, the product list follows. The most common gluten-containing foods include:

• Breads, rolls, tortillas, and most baked goods like cookies, cakes, and pastries

• Pasta, couscous, and many noodles

• Most breakfast cereals, crackers, and pretzels

• Most beer, since it is typically brewed from barley

None of these are off-limits forever in the sense of “gone.” Gluten-free versions of nearly all of them exist, from pasta to bread to beer. The goal is to swap, not to simply subtract.

What are the hidden sources of gluten most people miss?

This is where a celiac disease diet gets genuinely tricky. Gluten shows up as an ingredient, a thickener, or a coating in foods that do not look like bread at all. Reading labels is your best tool here.

Sauces, gravies, soy sauce, dressings, and soup bases

Wheat flour is a common thickener, so it hides in places you would not think to check. Watch for:

• Gravies and cream sauces thickened with flour

• Standard soy sauce, which is usually brewed with wheat

• Many salad dressings, marinades, and condiments

• Canned soups, bouillon cubes, and soup bases

Easy swaps keep these on your plate. Tamari labeled gluten-free replaces soy sauce, and cornstarch or a certified gluten-free flour thickens a sauce just as well.

Processed and deli meats, seasonings, and flavored snacks

Gluten can be used as a binder or filler, so it turns up in savory processed foods too. Check labels on:

• Deli meats, sausages, hot dogs, and imitation seafood

• Seasoning blends, spice mixes, and marinades

• Flavored chips, flavored nuts, and seasoned snack mixes

Plain versions are often naturally gluten-free. Whole cuts of meat, unseasoned nuts, and simple corn tortilla chips are usually safe choices, though the label still has the final say.

Oats and the cross-contamination question

Oats are naturally gluten-free, but they are frequently grown, harvested, and processed alongside wheat, which means standard oats can pick up gluten along the way. For this reason, only certified gluten-free oats are recommended for celiac disease.

The good news is that most people with celiac disease tolerate moderate amounts of certified gluten-free oats without a problem. A small number of people react to oats themselves, so it is worth introducing them carefully and checking in with your dietitian about how they sit with you.

Medications, supplements, and other surprises

Gluten can appear as a binder in pills and capsules, and in places most people never scan. A few worth a second look:

• Prescription and over-the-counter medications

• Vitamins and supplements

• Lip balm and lipstick, which can be ingested in small amounts

• Play dough and craft supplies, which matter for kids and caregivers

You do not need to panic over every product. Ask your pharmacist about your specific medications, and choose supplements labeled gluten-free when you can.

What is cross-contact, and why does it matter?

Cross-contact happens when a gluten-free food touches gluten, even without any gluten ingredient in the recipe. Because so little gluten can cause harm, this step protects all the careful shopping you just did. The NIDDK recommends keeping gluten-free food separate from gluten-containing food during prep and cooking.

At home (shared toasters, cutting boards, utensils, fryers)

Your own kitchen is the easiest place to fix. Common sources of cross-contact include:

• A shared toaster, where crumbs transfer to gluten-free bread

• Cutting boards, colanders, and wooden utensils that hold onto residue

• A shared jar of butter, peanut butter, or jam with a used knife

• A deep fryer that also fries breaded foods

Simple habits handle most of it. A dedicated toaster or toaster bags, separate condiment jars, and washing shared tools before use go a long way in a mixed household.

Eating out and traveling

Restaurants add variables you cannot see, so a little planning helps. Call ahead, look for a dedicated gluten-free menu, and tell your server it is a medical need rather than a preference.

Ask how food is prepared, especially whether fried items share oil with breaded foods. When you travel, packing a few safe snacks means you are never stuck without an option. Eating out with celiac disease is absolutely doable, and it gets easier with practice.

What can you actually eat — building a naturally gluten-free plate?

Here is the part that often gets lost in the “avoid” lists. A huge share of everyday food is naturally gluten-free, no special label required.

Whole foods that are naturally gluten-free

Most single-ingredient whole foods contain no gluten at all. The NIDDK points to naturally gluten-free staples like meat, fish, fruits, vegetables, and rice, and the same holds for other whole foods:

• Meat, poultry, and fish that are fresh and unbreaded

• Eggs

• Beans, lentils, nuts, and seeds

• Fruits and vegetables

• Most plain dairy, like milk, plain yogurt, and cheese

Build your plate around these first, and the diet starts to feel like abundance rather than restriction.

Safe grains and starches

You do not have to give up grains, either. Plenty are naturally gluten-free and make satisfying bases for meals:

• Rice

• Quinoa

• Corn and cornmeal

• Buckwheat (which, despite the name, contains no wheat)

• Millet

• Certified gluten-free oats

These cover breakfast bowls, grain salads, stir-fries, and sides without a second thought.

Reading labels and the “gluten-free” (under 20 ppm) standard

In the United States, the FDA gluten-free labeling rule means a product labeled “gluten-free” contains less than 20 parts per million (ppm) of gluten, the threshold considered safe for most people with celiac disease. When a packaged food carries that label, it has met this standard.

For anything without the label, scan the ingredients for wheat, barley, rye, and their relatives. Packaged foods that contain wheat must say so, which makes label-reading faster once it becomes a habit. If you want a done-for-you starting point, our gluten-free diet plan is a practical next step for turning these lists into actual meals.

What nutrition gaps can a gluten-free diet create — and how do you avoid them?

Removing gluten solves the celiac problem, but it can create a new one if you are not deliberate. Many gluten-containing products are fortified with vitamins and minerals, and their gluten-free replacements often are not.

Fiber, iron, folate, and B vitamins to watch

A gluten-free diet can run low in several nutrients. A 2021 study in the journal Nutrients found that adults on a gluten-free diet often fall short on fiber, iron, folate, and B vitamins, partly because refined gluten-free products replace fortified wheat ones.

You can close most of these gaps with food. Reach for naturally nutrient-dense, gluten-free choices like beans, lentils, quinoa, brown rice, nuts, seeds, leafy greens, and fortified gluten-free cereals when you can find them.

“Once we take out wheat, barley, and rye, the first things I watch are fiber, iron, folate, and the B vitamins, because so many gluten-free swaps are made from refined starches that skip the fortification. My go-to fixes are food first: beans and lentils for fiber and iron, quinoa or buckwheat in place of white rice, leafy greens and citrus for folate, and a fortified gluten-free cereal when someone likes cereal. If your labs still show a gap after a few months, that is when we talk about a targeted supplement rather than guessing.” — Bridget Isaacs, MS, RD

Why “gluten-free” doesn’t mean “healthier” (and the cost factor)

This is worth saying plainly. Gluten-free is medically necessary for celiac disease, but it is not automatically healthier for people without the condition. A gluten-free cookie is still a cookie.

There is a practical cost, too. That 2021 Nutrients review notes that gluten-free products are often more expensive and can be lower in fiber and micronutrients than their conventional counterparts. If you do not have celiac disease or a diagnosed reason to avoid gluten, there is no evidence that cutting it out improves your health, and it may cost you more for less nutrition.

How does a registered dietitian personalize this?

A dietitian turns a general “avoid gluten” instruction into a plan that fits your body, your budget, and your routine. Berry Street offers specialized celiac disease nutrition support for exactly this reason. The NIDDK specifically recommends working with a dietitian to build a healthy, complete gluten-free diet, and this is where personalization matters most.

“When someone is newly diagnosed and feeling buried by everything they suddenly can’t eat, I flip the conversation. We start with what is already safe and already loved: the eggs at breakfast, the rice bowl at lunch, the fruit they snack on, and we build meals out from there instead of staring at a list of restrictions. I would rather someone have five gluten-free dinners they genuinely look forward to than a perfect plan they dread, because the diet that works is the one that actually fits your life.” — Bridget Isaacs, MS, RD

Every person’s tolerance, symptoms, and nutrient needs are a little different, so this is something to personalize rather than copy from a template. You can connect with a registered dietitian who specializes in celiac disease and food allergies, and browse options like our dietitians in Austin and beyond.