Gluten is a protein found in certain grains, such as wheat, rye and barley.
It helps food maintain its shape by providing elasticity and moisture. It also allows bread to rise and provides a chewy texture ().
Although gluten is safe for most people, those with conditions like celiac disease or gluten sensitivity should avoid it to prevent adverse health effects ().
Many foods are made with gluten-containing ingredients, so it’s important that those who are unable to consume it check ingredient labels closely.
Here is a list of 54 gluten-free foods.
A select few whole grains contain gluten, while the rest are naturally gluten-free.
It’s important to double-check food labels when purchasing whole grains. Even gluten-free whole grains can be contaminated with gluten, especially if they are processed in the same facility as gluten-containing foods ().
For example, oats are often processed in facilities that also process wheat, which can lead to cross-contamination. For this reason, you should confirm that the oats you purchase are certified gluten-free ().
Gluten-Free Whole Grains
- Brown rice
- Wild rice
Grains to Avoid
- Wheat, all varieties (whole wheat, wheat berries, graham, bulgur, farro, farina, durum, kamut, bromated flour, spelt, etc.)
These gluten-containing grains are often used to make products like bread, crackers, pasta, cereals, baked goods and snack foods.
All fresh fruits and vegetables are naturally gluten-free. However, some processed fruits and vegetables may contain gluten, which is sometimes added for flavoring or as a thickener ().
Gluten-containing ingredients that may be added to processed fruits and vegetables include hydrolyzed wheat protein, modified food starch, malt and maltodextrin.
Fruits and Vegetables to Eat
Although the list below is not comprehensive, it provides some examples of fresh fruits and vegetables that you can enjoy on a gluten-free diet.
- Citrus fruits, including oranges and grapefruit
- Cruciferous vegetables, including cauliflower and broccoli
- Greens, such as spinach, kale and Swiss chard
- Starchy vegetables, including potatoes, corn and squash
- Bell peppers
- Green beans
Fruits and Vegetables to Double-Check
- Canned fruits and vegetables: May be canned with sauces that contain gluten. Fruits and vegetables canned with water or natural juices are likely gluten-free.
- Frozen fruits and vegetables: Sometimes contain added flavorings and sauces that contain gluten. Plain frozen varieties are typically gluten-free.
- Dried fruits and vegetables: May include gluten-containing ingredients. Plain, unsweetened, dried fruits and vegetables tend to be gluten-free.
- Pre-chopped fruits and vegetables: May be cross-contaminated with gluten depending on where they were prepped.
Many foods contain protein, including animal and plant-based sources. Most are naturally gluten-free ().
However, gluten-containing ingredients, such as soy sauce, flour and malt vinegar are often used as fillers or flavorings. They may be added to sauces, rubs and marinades that are commonly paired with protein foods.
- Legumes (beans, lentils, peas, peanuts)
- Nuts and seeds
- Red meat (fresh beef, pork, lamb, bison)
- Poultry (fresh chicken, turkey)
- Seafood (fresh fish, scallops, shellfish)
- Traditional soy foods (tofu, tempeh, edamame, etc.)
Proteins to Double-Check
- Processed meats, such as hot dogs, pepperoni, sausage, salami and bacon
- Meat substitutes, such as vegetarian burgers
- Lunch meats or cold cuts
- Ground meats
- Proteins that have been combined with sauces or seasonings
- Ready-to-eat proteins, such as those in microwavable TV dinners
Proteins to Avoid
- Any meat, poultry or fish that has been breaded
- Proteins that are combined with wheat-based soy sauce
Most dairy products are naturally gluten-free. However, those that are flavored and contain additives should always be double-checked for gluten ().
Some common gluten-containing ingredients that may be added to dairy products include thickeners, malt and modified food starch.
Gluten-Free Dairy Products
- Butter and ghee
- Cottage cheese
- Sour cream
Dairy Products to Double-Check
- Flavored milks and yogurts
- Processed cheese products, such as cheese sauces and spreads
- Ice cream, which is sometimes mixed with additives that contain gluten
Dairy Products to Avoid
- Malted milk drinks
Fats and oils are naturally gluten-free. In some cases, additives that contain gluten may be mixed with fats and oils for flavor and thickening.
Gluten-Free Fats and Oils
- Butter and ghee
- Olives and olive oil
- Avocados and avocado oil
- Coconut oil
- Vegetable and seed oils, including sesame oil, canola oil and sunflower oil
Fats and Oils to Double-Check
- Cooking sprays
- Oils with added flavors or spices
There are several types of gluten-free beverages for you to enjoy.
However, some beverages are mixed with additives that contain gluten as an ingredient. Additionally, some alcoholic beverages are made with malt, barley and other gluten-containing grains and should be avoided on a gluten-free diet ().
- 100% fruit juice
- Some alcoholic beverages, including wine, hard ciders and beers made from gluten-free grains, such as buckwheat or sorghum
- Sports drinks, soda and energy drinks
Note that while these beverages are gluten-free, most of them are best consumed in moderation due to their added sugar and alcohol contents.
Beverages to Double-Check
- Any beverage with added flavorings or mix-ins, such as coffee coolers
- Distilled liquors, such as vodka, gin and whiskey — even when labeled gluten-free, as they are known to trigger a reaction in some people
- Pre-made smoothies
Beverages to Avoid
- Beers, ales and lagers made from gluten-containing grains
- Non-distilled liquors
- Other malt beverages, such as wine coolers
Spices, sauces and condiments often contain gluten but are commonly overlooked.
Although most spices, sauces and condiments are naturally gluten-free, gluten-containing ingredients are sometimes added to them as emulsifiers, stabilizers or flavor enhancers.
Some common gluten-containing ingredients added to spices, sauces and condiments include modified food starch, maltodextrin, malt and wheat flour.
Gluten-Free Spices, Sauces and Condiments
- Coconut aminos
- White vinegar, distilled vinegar and apple cider vinegar
Spices, Sauces and Condiments to Double-Check
- Ketchup and mustard
- Worcestershire sauce
- Tomato sauce
- Relish and pickles
- Barbecue sauce
- Salad dressing
- Pasta sauce
- Dry spices
- Stock and bouillon cubes
- Gravy and stuffing mixes
- Rice vinegar
Spices, Sauces and Condiments to Avoid
- Wheat-based soy sauce and teriyaki sauce
- Malt vinegar
Here is a list of ingredients and food additives that may indicate that an item contains gluten.
- Modified food starch and maltodextrin (if made from wheat, it will be specified on the label)
- Malt-based ingredients, including malt vinegar, malt extract and malt syrup
- Gluten stabilizer
- Soy or teriyaki sauce
- Wheat-based ingredients, such as wheat protein and wheat flour
- Emulsifiers (will be specified on the label)
If you are unsure if a product contains gluten, it’s a good idea to contact the manufacturer to double-check.
If you avoid gluten, there are plenty of foods you can choose from to ensure a well-balanced diet.
Many healthy foods are naturally gluten-free, including fruits, vegetables, fresh meat, fish and poultry, legumes, certain whole grains, dairy products and oils.
Wheat, rye and barley are the major foods that need to be avoided while following a gluten-free diet. Gluten is also commonly added to processed foods, such as canned and boxed items.
Furthermore, some grains, such as oats, may be cross-contaminated with gluten, depending on where they were processed.
Success with a gluten-free diet comes down to double-checking ingredient labels, as gluten is often added to foods that you wouldn’t expect. Foods that contain gluten will be labeled as such.
Nevertheless, if you focus on eating mostly fresh, whole, gluten-free foods and a minimal amount of processed foods, you will have no problem following a gluten-free diet.