An allergy to corn is a common food allergy. A corn-free diet removes not only products made primarily from corn, but also avoids foods containing ingredients derived from corn. People allergic to corn also should avoid non-food items containing corn derivatives, such as some medicines and adhesives.
Corn allergy symptoms may include any of the common symptoms food allergies, including skin rashes or hives, gastrointestinal distress, breathing problems, or many other possible symptoms. Although in severe cases, a life-threatening reaction called anaphylaxis may occur, anaphylaxis to corn is a rare event.
Most people who are allergic to corn are allergic to the protein within it. Corn oil poses little risk of causing an allergic reaction because processing removes almost all the protein; however, people who are highly sensitive to corn should avoid corn oil, too.
To avoid corn and corn products ask about ingredients at restaurants and others’ homes, read food labels, and become familiar with the technical or scientific terms for corn. Consult with a healthcare professional before making any significant changes to your diet.