Ig E antibody analysis for food allergies to 44 foods Are you allergic to food? This question is not always easy to answer. Severe allergy sufferers typically react to peanut, soy, fish, etc. since childhood, but for some people, allergies develop over the years and don’t present with clear symptoms. Symptoms such as rash, digestive issues, or a sore throat can restrict everyday life and can be uncomfortable. The cerascreen® food allergy test helps you investigate hidden allergies. The send-in sample collection kit for at-home use determines the concentration of specific ig e antibodies in your blood. This analysis provides the first indications of a possible food allergy. For a definitive allergy diagnosis, discuss the results with your doctor. The cerascreen food allergy test determines the concentration of specific ig e antibodies in response to 44 different foods. The test thus covers the foods that are responsible for a large proportion of food allergies.