What is the Dairy IgG Tolerance Panel?

The Dairy IgG Tolerance Panel is a blood test that measures Immunoglobulin G (IgG) antibodies produced in response to specific dairy proteins. Unlike immediate food allergies, IgG reactions are delayed and may cause symptoms hours or even days after consumption.

This panel focuses specifically on dairy-related foods, helping to identify sensitivities to common components such as milk proteins and lactose-containing products. It is frequently used in functional and integrative medicine to support dietary optimisation and symptom investigation.

IgG testing does not diagnose food allergy but provides insight into how the immune system responds to repeated exposure to certain foods.

Why do I need a Dairy IgG Tolerance Panel?

Dairy sensitivity is a common but often overlooked cause of chronic digestive and inflammatory symptoms. Because IgG reactions are delayed, many people do not associate their symptoms with dairy consumption.

This test is useful when symptoms persist despite normal allergy testing or routine investigations.

You may benefit from this test if you experience:

• Bloating or abdominal discomfort
• Diarrhoea or constipation
• Fatigue or low energy
• Brain fog or poor concentration
• Headaches or migraines
• Skin issues such as acne or eczema
• Sinus congestion
• Joint or muscle aches

Identifying dairy-related IgG reactions can support targeted elimination diets and long-term symptom management.

Benefits of the Dairy IgG Tolerance Panel

• Identifies delayed dairy sensitivities
  Detects immune reactions not picked up by allergy tests.
• Supports digestive health assessment
  Useful for unexplained bloating or bowel symptoms.
• Helps personalise dietary choices
  Guides elimination or reduction strategies.
• May reduce chronic inflammation triggers
  Supports symptom improvement through diet.
• Non-invasive and simple
  Requires only a blood sample.
• Useful when allergy tests are negative
  Investigates non-allergic immune responses.
• Supports gut health optimisation
  Often used alongside microbiome or gut testing.
• Improves symptom awareness
  Helps link food intake with delayed reactions.

Step by step – how the test works

You can access testing UK-wide through two options:

1. Clinic appointment
   Choose your nearest UK clinic. A healthcare professional will collect your blood sample.
2. At-home or hotel visit (£60 extra)
   A qualified phlebotomist visits your home or hotel, so you don’t need to travel.

Your sample is analysed in a UK laboratory, and results are provided securely.

Your results explained

Low IgG levels (Negative reaction)

Suggest no significant immune response to the tested dairy foods. These foods are generally well tolerated.

Typical UK interpretation:

• Low or absent IgG antibodies

Moderate IgG levels

Indicate a possible sensitivity. Symptoms may occur with frequent or large amounts of the food.

Typical UK interpretation:

• Mild to moderate IgG elevation

High IgG levels

Suggest a strong immune response to specific dairy proteins. These foods may contribute to symptoms and are often recommended for temporary elimination.

Typical UK interpretation:

• High IgG antibody levels above laboratory thresholds

Exact values and grading depend on laboratory methodology.