Diet Guides
Gluten-Free Starter Guide
What gluten actually is, where it hides, and how to cook great food without it.
When you first go gluten-free, the list of foods you think you have to give up feels enormous. In reality, the majority of what people eat is naturally gluten-free. The adjustment is mostly about learning where gluten hides and finding reliable replacements for the specific things you miss most.
What Is Gluten and Why Does It Matter?
Gluten is a group of proteins found in wheat, barley, and rye. It's what gives bread its chewy texture and helps baked goods hold their shape. For most people, it's harmless. For people with celiac disease or non-celiac gluten sensitivity, consuming gluten triggers an immune response or digestive symptoms that can range from uncomfortable to seriously damaging.
Celiac disease is an autoimmune condition where gluten consumption damages the lining of the small intestine. Even tiny amounts can cause lasting harm, which is why people with celiac need to be strict about cross-contamination as well as direct consumption. Non-celiac gluten sensitivity causes symptoms without intestinal damage, and the threshold for what causes a reaction varies from person to person.
What You Can Still Eat (It Is a Long List)
The foods that are naturally gluten-free make up most of a typical diet. Protein, vegetables, fruit, dairy, rice, potatoes, legumes, eggs, and most whole foods are all gluten-free by nature.
- All fresh meat, poultry, and fish
- All eggs
- All fruits and vegetables
- All plain dairy products: milk, yogurt, cheese
- Rice, including white, brown, jasmine, and basmati
- Potatoes and sweet potatoes
- Corn and polenta
- Quinoa
- Oats (when labeled gluten-free, as regular oats are often cross-contaminated)
- All legumes: beans, lentils, chickpeas
- Most nuts and seeds
- All plain oils, vinegars, and most condiments
Most of dinner is already gluten-free
A plate of roasted chicken, roasted vegetables, and rice is a complete gluten-free dinner with no special products required. You likely already cook many gluten-free meals without thinking of them that way.
Where Gluten Hides
The tricky part of going gluten-free is not cutting out bread and pasta. Most people figure that out immediately. The harder part is finding gluten in products where you wouldn't expect it.
- Soy sauce: most traditional soy sauce is made with wheat. Tamari is the gluten-free alternative.
- Soups and broths: many contain wheat as a thickener or flavor base
- Salad dressings: malt vinegar (from barley) and wheat-based thickeners appear in many
- Processed meats: sausages, deli meats, and hot dogs often contain wheat as a filler or binder
- Imitation crab and some fish sticks: often contain wheat starch
- Oats: not inherently gluten-containing, but most are processed in facilities shared with wheat
- Beer: almost always made with barley unless labeled gluten-free
- Licorice and some candies: often contain wheat flour
- Communion wafers: a concern for people with celiac who receive communion
Getting in the habit of reading ingredient labels is the most useful skill you can build in the first few weeks of going gluten-free.
Gluten-Free Shopping Without Spending a Fortune
Specialty gluten-free products like breads, pastas, and baking mixes can be expensive. The good news is that the healthiest gluten-free eating barely requires them.
- Build meals around naturally gluten-free whole foods: protein, rice, potatoes, vegetables
- Rice pasta is the most widely available, affordable gluten-free pasta and works well in most dishes
- Corn tortillas are naturally gluten-free and very inexpensive
- Certified gluten-free oats are usually cheaper than specialty gluten-free bread
- Store-brand certified gluten-free products are available at most major grocery chains and are significantly cheaper than specialty brands
Shop the perimeter first
The perimeter of most grocery stores is where the naturally gluten-free foods live: produce, meat, fish, and dairy. The middle aisles are where gluten hides in processed products. Starting your shopping around the edges keeps the list simple and affordable.
Eating Out Gluten-Free
Eating out gluten-free is much more doable than it used to be. Most restaurants are familiar with the request. A few habits make it safer.
- Tell your server about the allergy at the beginning, not when you're ordering
- Ask whether the kitchen uses separate equipment for gluten-free dishes or just a different prep area
- Fried foods are often cooked in the same oil as breaded items: ask whether the fryer is dedicated
- Grilled proteins, salads with simple dressings, and rice dishes are usually the safest options
- Ask about sauces, marinades, and seasonings specifically, as these are common hidden gluten sources
For celiac disease, cross-contamination in restaurant kitchens is a real risk even when a restaurant has gluten-free menu items. Dedicated gluten-free kitchens or certified gluten-free restaurants are the safest option for people with celiac.
Cross-Contamination at Home
If someone in your household doesn't eat gluten-free and you're sharing a kitchen, cross-contamination is something to think about, especially for celiac disease.
- Keep a dedicated toaster for gluten-free bread, as crumbs contaminate the heating elements
- Use separate colanders for pasta, as gluten can cling to the plastic or metal
- Wash hands and surfaces after handling gluten-containing foods before touching gluten-free ones
- Store gluten-free foods above gluten-containing ones so nothing falls onto them
- Consider separate butter or condiment jars to prevent crumbs from a knife entering the shared jar
Frequently asked questions
- Is oatmeal gluten-free?
- Oats themselves don't contain gluten, but most oats are grown and processed in facilities shared with wheat, which causes cross-contamination. Certified gluten-free oats are processed separately and are safe for most people with gluten sensitivity. For celiac disease, even certified gluten-free oats cause reactions in a small percentage of people.
- Is sourdough safe for gluten-free diets?
- Traditional sourdough is made from wheat and isn't gluten-free, even though the fermentation process partially breaks down some gluten. It's not safe for celiac disease. Some bakeries make sourdough from gluten-free flours, but always confirm before eating.
- Are all gluten-free products automatically healthier?
- No. Gluten-free packaged products are often higher in sugar, fat, and additives than their conventional counterparts, and lower in fiber and protein. A gluten-free label isn't a health claim.
- How do I know if I am actually gluten-sensitive?
- The best way to know is through a combination of testing and an elimination diet, done with the guidance of a doctor. Celiac disease can be confirmed with a blood test and intestinal biopsy. Non-celiac gluten sensitivity is diagnosed by ruling out celiac disease and wheat allergy and observing symptom changes on a gluten-free diet.