What is the Egg White IgE Level Test?

The Egg White IgE Level test measures allergen-specific immunoglobulin E (IgE) antibodies directed against proteins found in egg white. IgE antibodies are involved in immediate (Type I) allergic reactions and are produced when the immune system becomes sensitised to an allergen.

Egg white contains several allergenic proteins that are more commonly associated with allergic reactions than egg yolk. Measuring egg white–specific IgE helps determine whether symptoms may be immune-mediated rather than due to intolerance.

This test is widely used in the investigation of suspected food allergy in both children and adults.

Why do I need a test for Egg White IgE?

You may need this test if you experience symptoms shortly after consuming eggs or foods containing egg white. Egg allergy is one of the most common food allergies in childhood but can also persist into adulthood.

Testing helps confirm allergic sensitisation, guide dietary avoidance decisions and assess the risk of allergic reactions.

Symptoms and scenarios where testing is recommended:

• Hives or skin rash after eating eggs
• Swelling of lips, face or throat
• Abdominal pain, nausea or vomiting
• Wheezing or breathing difficulty
• Suspected food-triggered reactions
• Childhood eczema with food triggers
• Monitoring known egg allergy
• Allergy assessment before reintroduction

Benefits of the Egg White IgE Level Test

• Identifies egg white sensitisation
  Detects immune-mediated allergy response.
• Supports diagnosis of egg allergy
  Helps differentiate allergy from intolerance.
• Guides dietary management
  Supports safe avoidance or reintroduction planning.
• Assesses allergy severity risk
  Higher IgE levels may correlate with reaction risk.
• Useful in children and adults
  Commonly used across all age groups.
• Non-invasive blood-based test
  No exposure to allergen required.
• Supports allergy monitoring
  Tracks changes in sensitisation over time.
• Widely accepted allergy marker
  Standard test in allergy assessment.

Step-by-Step: How Testing Works

Choose your preferred testing method

You can attend one of our UK partner clinics or arrange a home or hotel visit with a mobile phlebotomist.

Option 1 – In-Clinic Blood Draw

1. Select your nearest UK clinic and book an appointment.
2. A clinician or phlebotomist collects a venous blood sample.
3. The sample is analysed for egg white–specific IgE antibodies.
4. Results are delivered securely online.

Option 2 – Home or Hotel Phlebotomy (+£60)

1. Book a UK-wide home or hotel visit at a convenient time.
2. A trained phlebotomist collects your blood sample on-site.
3. The sample is transported to the laboratory.
4. Results are uploaded digitally without the need to travel.

Your Results Explained

Low / Negative Levels

Low or undetectable egg white IgE suggests no allergic sensitisation.
This makes IgE-mediated egg allergy unlikely.

Moderate Levels

Moderately elevated IgE levels indicate sensitisation.
Clinical symptoms are needed to confirm true allergy.

High Levels

High egg white IgE levels suggest a higher likelihood of clinical allergy.
Risk of immediate allergic reactions may be increased.

UK reference ranges and clinical interpretation vary by laboratory and age.