What should you know about private food allergy testing?

A clinician may use a skin-prick test or blood test to look for sensitisation to particular foods. Sensitisation means the immune system reacts in a test; it does not always mean that eating the food causes symptoms. The timing, amount eaten and pattern of symptoms are therefore central to the assessment.

Broad home panels and unvalidated tests can produce confusing findings. Avoid removing many foods without professional guidance, because restrictive eating can make nutrition harder and may obscure the original pattern.

Write down the food, amount, preparation, time to symptoms and symptoms that followed. Include medicines, eczema, asthma and previous reactions. A GP or allergy clinician can decide which tests fit the history and whether supervised food challenge or another approach is needed.

Do not deliberately eat a suspected trigger to test yourself. Until reviewed, follow the avoidance and emergency plan given by a qualified clinician.

Call emergency services immediately for trouble breathing, throat or tongue swelling, faintness, collapse, or widespread hives with vomiting after eating. These may indicate Anaphylaxis. Use prescribed emergency medicine according to your action plan and do not wait for a private test result.

Ask which food is being assessed, what a positive or negative result can and cannot show, whether medicines affect testing, and how to maintain safe nutrition while the diagnosis is clarified.