The key to successfully preventing allergic reactions to corn is eliminating corn and foods with corn proteins from the diet. Considering the large number of foods that contain corn proteins, this can be a massive undertaking. However, successfully modifying the diet to exclude corn products will result in the complete elimination of corn allergy symptoms. Corn oils, which do not contain corn proteins, are generally safe.

Here on some specific tips that may help manage a corn-free diet:

• Keep a diary of foods and symptoms. Making notes about everything that is eaten and any symptoms (even minor ones) can help identify any hidden products that might contain corn and be responsible for triggering an allergy. Food diaries are only effective when the patient records every food that is eaten. For this reason, patients should always record their foods immediately after they are eaten.
  
  
• Find a good place to shop. Many areas have grocery stores that sell organic and specialized foods. These can be a valuable resource to a person with a corn allergy, as they often offer many types of alternative foods that may omit ingredients such as corn. Inquire about corn-free foods at the stores in your area.
  
  
• Avoid fast food. Most fast food will have corn of some type as an ingredient, from corn starch (e.g., breads, hot dogs) to corn syrup (e.g., soda, desserts, condiments). If it is a must, a plain hamburger or unbreaded chicken meat without a bun, with water or pure fruit juice are the best choices.
  
  
• Inform all physicians. Make sure any physician that is writing a prescription for you knows of your condition. Some types of medication contain corn proteins.