Living with celiac disease means paying close attention to what you eat. While avoiding bread and pasta may seem straightforward, gluten can hide in many everyday foods, including sauces, cereals, seasonings, and even certain medications.
The good news? With a little preparation and an understanding of food labels, maintaining a gluten-free diet can become much easier.
Here's what you need to know about celiac disease, which foods contain gluten, and how to avoid accidental exposure.
What Is Celiac Disease?
Celiac disease is a chronic autoimmune condition in which consuming gluten triggers an immune response that damages the lining of the small intestine. Over time, this damage can interfere with nutrient absorption and lead to additional health complications.
Common symptoms include:
Abdominal pain and bloating
Chronic diarrhea or constipation
Fatigue
Unexplained weight loss
Iron-deficiency anemia
Bone or joint pain
Some people experience very few digestive symptoms, making the condition difficult to recognize.
What Causes Celiac Disease?
Celiac disease develops in people with a genetic predisposition. Gluten, a protein found in wheat, barley, and rye, triggers the autoimmune response in those affected.
Having a close relative with celiac disease increases your risk, but not everyone who carries the associated genes will develop the condition.
Unlike a food intolerance, celiac disease can cause intestinal damage even when symptoms are mild or absent. That's why following a strict gluten-free diet is essential for managing the condition.
Foods to Avoid If You Have Celiac Disease
Gluten is found in more foods than you might expect. Beyond obvious sources like bread, pasta, and baked goods, certain processed foods contain gluten-based ingredients that are easy to overlook.
Here are some common sources to watch for.
1. Wheat, Barley, and Rye Products
The most important step is avoiding foods made with gluten-containing grains. These include:
Wheat, including durum, semolina, spelt, farro, and einkorn
Barley and barley malt
Rye
Traditional wheat-based pasta and noodles
Bread, crackers, pastries, and baked goods made with wheat flour
When shopping, look for products specifically labeled gluten-free rather than assuming they're safe based on their appearance.
2. Soy Sauce and Other Condiments
Many sauces contain wheat-based ingredients, even when wheat isn't an obvious part of the recipe.
Traditional soy sauce commonly contains wheat, and some teriyaki sauces, marinades, and gravies also include gluten-containing ingredients.
Choose products labeled gluten-free, such as gluten-free tamari, and always check ingredient lists before using unfamiliar condiments.
3. Breakfast Cereals
Corn- and rice-based cereals may seem like safe options, but some contain barley malt flavoring or other gluten-containing ingredients.
Cross-contact during manufacturing can also be a concern.
When choosing cereal, look for a gluten-free label. Naturally gluten-free grains are not always enough to guarantee that a finished product is suitable for someone with celiac disease.
4. Salad Dressings, Sauces, and Vinegars
Some salad dressings, barbecue sauces, marinades, and prepared seasonings contain gluten-based thickeners or flavorings.
Malt vinegar made from barley is another ingredient to avoid unless the product is specifically verified as gluten-free.
However, many common vinegars, including apple cider vinegar, balsamic vinegar, and distilled vinegar, are generally gluten-free.
5. Processed Foods and Beverages
Gluten can also appear in less obvious products, including:
Soups, broths, and gravies
Processed meats and meat substitutes
Certain candies and licorice
Seasoned snack foods
Traditional beer and malt beverages
Some nutritional supplements and medications
Not every product in these categories contains gluten, but checking labels can help prevent accidental exposure.
Practical Tips for Maintaining a Gluten-Free Diet
Avoiding gluten doesn't mean giving up all your favorite foods. A few simple habits can make managing celiac disease easier.
Read food labels carefully. Look for gluten-free labeling and check ingredients for wheat, barley, rye, and malt. Remember that a product labeled "wheat-free" isn't necessarily gluten-free.
Choose naturally gluten-free foods. Fresh fruits, vegetables, eggs, unseasoned meats, beans, and many dairy products are naturally gluten-free. Rice, quinoa, and potatoes are also excellent alternatives to wheat-based foods.
Prevent cross-contact. Shared toasters, cutting boards, utensils, and cooking surfaces can transfer gluten to otherwise gluten-free foods. Keep preparation areas clean and consider using separate equipment when necessary.
Be cautious when dining out. Ask restaurant staff about gluten-free preparation methods, shared fryers, and potential cross-contact before ordering.
Plan meals ahead. Preparing meals at home gives you greater control over ingredients and can make following a gluten-free diet less stressful.
For additional meal inspiration, explore our guide to seven gluten-free foods worth trying.
When Should You See a Specialist?
If you frequently experience bloating, abdominal discomfort, diarrhea, or unexplained digestive symptoms, it's important to determine what's causing them.
Celiac disease shares symptoms with several other digestive conditions, so proper testing is essential.
If you suspect celiac disease, don't eliminate gluten before speaking with a healthcare provider. Removing gluten before testing can affect the accuracy of blood tests and intestinal biopsies.
At the Colorectal Clinic of Tampa Bay, our specialists help patients evaluate digestive and colorectal concerns and determine when additional testing or referral to a gastroenterologist may be appropriate.
If you're experiencing persistent digestive symptoms, contact our team to discuss your concerns and take the next step toward better digestive health.