Lab test

Corn, Cultivated Allergy Test

A cultivated corn allergy test checks for antibodies the immune system produces against corn proteins.

Typical price

From $49

Results

1-3 business days

Preparation

See preparation notes below

Sample

Blood draw or sample collection at a local center

A cultivated corn allergy test checks for antibodies the immune system produces against corn proteins. It is a screening tool for suspected food allergy and is not a diagnosis on its own. A healthcare provider may order it after a reaction to corn or corn-derived ingredients, or as part of a wider grain and vegetable panel. Corn appears in many processed foods and sweeteners, so identifying sensitization can help guide further evaluation.

• Corn-specific IgE Antibodies produced in response to cultivated corn proteins; used to assess sensitization to corn.

• People who develop hives, itching, or swelling after eating corn
• Individuals with mouth tingling or irritation after corn products
• Those with digestive upset, vomiting, or diarrhea after corn
• People with eczema or skin reactions who suspect a corn trigger
• Anyone with a history of reaction to corn or corn-derived ingredients

• No fasting is required for this IgE allergy test
• The blood sample can be collected at any time
• Tell the provider about medications you take
• No special diet is needed beforehand

The corn-specific IgE result is reported as a numeric level or class. A value above the reporting threshold may indicate sensitization to corn proteins, but sensitization does not always cause symptoms. A low or undetectable level makes a true corn allergy less likely without completely ruling it out. Corn proteins can cross-react with certain grass pollens, so a provider may interpret the result alongside your pollen history. Discuss results with a healthcare provider before changing your diet.

• Alabama
• Alaska
• Arizona
• Arkansas
• California
• Colorado
• Connecticut
• Delaware
• Florida
• Georgia