What should you know about genetic testing food allergies?

Food allergy is an immune response to a food protein. Family history can influence allergic tendency, but a genetic panel cannot reliably show which food will cause a reaction or how severe a future reaction may be. Assessment may involve a careful account of timing, symptoms, preparation and amount, followed by targeted skin or blood testing. A positive sensitisation result is not the same as proven clinical allergy, so results need interpretation rather than broad food avoidance.

Record suspected foods and the exact reaction, including skin, gut, breathing or circulation symptoms. Do not deliberately eat a suspected trigger to test yourself. Ask an allergy clinician whether supervised testing is appropriate and what to do while waiting. Read labels carefully and discuss an emergency plan if you have had a rapid or severe reaction. Conditions such as Allergic Rhinitis or Asthma can coexist with allergy, but their presence does not prove a food trigger.

After eating a suspected trigger, seek emergency help immediately for trouble breathing, throat tightness, swelling of the tongue, widespread hives with dizziness, collapse or repeated vomiting. Anaphylaxis can progress quickly and should not be evaluated with home genetic testing or treated by waiting for a routine appointment.

Does my reaction history fit an immune food reaction? Which targeted test is suitable? Could a supervised oral food challenge clarify the result? What foods should I avoid now, and what emergency plan should my household know?