Yes, corn in its natural form is gluten-free. However, be on the lookout for gluten in corn that comes in a sauce or with any other ingredients, as they could contain the protein. Regardless of the type of corn you purchase, always double check the ingredients label to make sure the product is truly gluten-free.
Other Types of Corn
There are other variations of corn that can be eaten on a gluten-free diet. Along with plain corn, people with celiac disease commonly ask if the follow are gluten-free:
- Cornstarch
- Corn flour
- Hominy
- Cornmeal
Cornstarch
Cornstarch is gluten-free in its natural form. Cornstarch is made by grinding up the starchy (carbohydrate) portion of a corn grain and turning it into a very fine powder. Cornstarch is typically used as a thickener for soups, sauces, gravy and stews. It’s also used in pre-made gluten-free flour blends because it creates a smoother texture.
Corn Flour
Just like corn starch, corn flour is gluten-free in its natural form. It has a light, finer texture when used in baked goods. Whenever possible, buy corn flour that is labeled gluten-free, as it is possible for cross-contact to occur during the manufacturing process.
Cornmeal
Cornmeal is also gluten-free. Cornmeal is a coarse flour made from maize, (i.e. corn). Just like cornflour, it’s important to look for labeled gluten-free cornmeal whenever possible, as cross-contact can easily occur during manufacturing.
Hominy
Hominy is a product of corn and is gluten-free. Hominy is made from dried corn kernels which are then soaked in a lime bath or lye bath. It’s used in many different products, like tortillas, for example.
Popcorn
While popcorn is naturally gluten-free, it can contain additives or flavorings with gluten. Popcorn itself is made from corn kernels which are heated until they “pop.” Certain ingredients are then added, such as butter, salt, and spices, and some of these additives can contain malt flavorings, soy sauce, or spice blends that have gluten. Normally, it’s easy to read the ingredients and determine if the popcorn is gluten-free, but if there is any confusion over items like starches and flavorings, please call the manufacturer before consuming it.
Other times, such as at sporting events, movie theaters, fairs, or anywhere with a popcorn machine, it can be difficult to determine the exact ingredients. In these cases, it’s best to ask questions about how the popcorn is prepared, how often the machine is cleaned, and what the ingredients in the butter and other flavorings are before consuming. If you cannot obtain a clear answer, it’s often best to not eat—though that decision is ultimately yours to make.
Finally, popcorn can be made safely at home using your own machine and ingredients. Small-popcorn machines are easily obtainable, and you can make interesting custom flavors, or just good old butter and salt!
