Diagnostics·Diagnostics
Oral food challenge
Informed by recognized medical guidance
Overview
An oral food challenge is a medical test done under close supervision to find out if you are truly allergic to a specific food. During the test, you eat small, increasing amounts of the suspected food while a doctor or nurse watches for any signs of an allergic reaction.
Key facts
- It is the most accurate way to diagnose a food allergy.
- The test is always done in a clinic or hospital — never at home — because a severe reaction could happen.
- You will be watched closely the whole time, and treatment is ready if needed.
Oral food challenges are not done for everyone with suspected food allergies. They are usually recommended when skin or blood tests are unclear or when you have had a reaction that is hard to explain.
This test can be done on people of any age, including babies, children, and adults. It is especially helpful when there is doubt about whether a food is truly causing symptoms.