Gluten is a protein found in grains such as wheat, barley, and rye. For people with celiac disease or gluten sensitivity, consuming gluten can cause digestive problems, inflammation, and other health issues.

While most people are aware of the obvious sources of gluten, such as bread and pasta, there are several surprising foods that contain gluten. Here are ten foods that you may not have known contain gluten.

Bouillon Cubes and Broth

While it may seem like broth or bouillon cubes would be a safe option for gluten-free cooking, many brands contain wheat or barley. Always check ingredient labels carefully, and if you’re not sure, look for a certified gluten-free option.

Soy Sauce

Soy sauce is made from fermented soybeans and grains, typically wheat. While there are gluten-free soy sauce options available, traditional soy sauce contains gluten and should be avoided by people with celiac disease or gluten intolerance.

Beer

Beer is typically made from barley, which contains gluten. While there are some gluten-free beer options available, most traditional beer contains gluten and should be avoided by people with celiac disease or gluten sensitivity.

Oats

While oats themselves don’t contain gluten, they are often processed in facilities that also process wheat, barley, and other gluten-containing grains.

As a result, many oats can be contaminated with gluten and are not considered safe for people with celiac disease or gluten sensitivity. Look for certified gluten-free oats if you want to include oats in your diet.

Sausages

Many sausages contain fillers such as wheat or breadcrumbs. Always check ingredient labels carefully when purchasing sausage, and look for brands that use gluten-free fillers or are certified gluten-free.

Candy

Many types of candy, particularly licorice and gummy candies, contain wheat flour. Always read ingredient labels carefully when purchasing candy, and look for brands that are certified gluten-free.

Ice Cream

While most ice cream is gluten-free, some varieties contain gluten-containing ingredients such as cookies or cake pieces. Always read ingredient labels carefully before purchasing ice cream, and look for brands that are certified gluten-free.

Soup

Many canned or packaged soups contain wheat flour as a thickener. Always check ingredient labels carefully when purchasing soup, and look for brands that are certified gluten-free.

Processed Meats

Many processed meats, such as deli meats and hot dogs, contain fillers such as wheat or barley. Always check ingredient labels carefully when purchasing processed meats, and look for brands that use gluten-free fillers or are certified gluten-free.

Sauces and Gravies

Many sauces and gravies contain wheat flour as a thickener. Always check ingredient labels carefully when purchasing sauces and gravies, and look for brands that are certified gluten-free.