How to test for food allergies. The blood test generally costs more than skin testing. The results are usually not ready for one to two weeks. If your healthcare provider offers the service you can schedule an appointment specifically to get tested for food allergies. There is no scientific evidence to support electrodermal testing for the diagnosis of food allergies.
Basic food allergy test panel popular test this test uses a blood sample to detect an allergic reaction to 15 basic food allergens that are common including certain seafood cows milk egg whites peanuts soy nuts and wheat. The existence of serum igg antibodies towards particular foods is claimed by many practitioners as a tool to diagnose food allergy or intolerance. Additionally some people think they are allergic to a food when they actually have another type of food disorder and treatment may differ. It also checks for allergies to certain grains such as corn wheat rice lentils and several other grains.
Do not diagnose a food allergy on your own. Self diagnosis can lead to unnecessary dietary restrictions and inadequate nutrition especially in children. Avoid self diagnosis and unproven tests. The new guidelines help doctors use food allergy tests in the best possible way.
Call in advance to request a food allergy test. And when used properly portnoy says testing works. In some cases offices may require a consultation prior to testing to ensure that your insurance will cover the test. When done correctly by an allergist skin tests and blood tests are reliable and can rule in or out a food allergy.