Food-specific IgG4 Panel (26 Foods)

Measures food-specific IgG4 antibodies to the 26 listed foods and food groups. Professional allergy organisations do not consider food IgG or IgG4 testing a valid way to diagnose food allergy or food intolerance, because these antibodies commonly reflect exposure to food and can occur in healthy people. Do not remove foods from your diet on this result alone.

At a glance

• Sample: Capillary or venous blood
• Collection: Follow the supplied instructions for providing your capillary or venous blood sample
• Estimated turnaround: Contact Home2Lab for the current laboratory estimate before ordering

What this test measures

Hen egg-specific IgG4

An IgG4 antibody response to Hen egg; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Potato-specific IgG4

An IgG4 antibody response to Potato; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Wheat flour-specific IgG4

An IgG4 antibody response to Wheat flour; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Rice-specific IgG4

An IgG4 antibody response to Rice; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Peanut-specific IgG4

An IgG4 antibody response to Peanut; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Banana-specific IgG4

An IgG4 antibody response to Banana; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Strawberry-specific IgG4

An IgG4 antibody response to Strawberry; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Kiwi-specific IgG4

An IgG4 antibody response to Kiwi; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Orange-specific IgG4

An IgG4 antibody response to Orange; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Beef-specific IgG4

An IgG4 antibody response to Beef; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Pork-specific IgG4

An IgG4 antibody response to Pork; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Chicken-specific IgG4

An IgG4 antibody response to Chicken; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Soya bean-specific IgG4

An IgG4 antibody response to Soya bean; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Amaranth-specific IgG4

An IgG4 antibody response to Amaranth; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Buckwheat-specific IgG4

An IgG4 antibody response to Buckwheat; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Quinoa-specific IgG4

An IgG4 antibody response to Quinoa; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Wild rice-specific IgG4

An IgG4 antibody response to Wild rice; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Oat-specific IgG4

An IgG4 antibody response to Oat; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Barley-specific IgG4

An IgG4 antibody response to Barley; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Spelt-specific IgG4

An IgG4 antibody response to Spelt; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Kamut-specific IgG4

An IgG4 antibody response to Kamut; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Rye-specific IgG4

An IgG4 antibody response to Rye; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Goat milk-specific IgG4

An IgG4 antibody response to Goat milk; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Sheep milk-specific IgG4

An IgG4 antibody response to Sheep milk; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Mare milk-specific IgG4

An IgG4 antibody response to Mare milk; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

Unboiled cow milk-specific IgG4

An IgG4 antibody response to Unboiled cow milk; this is not established as a diagnosis of food intolerance or allergy, and detection may simply reflect ordinary dietary exposure.

How clinicians use this test

Food-specific IgG4 is not recommended by BSACI or other professional allergy organisations for diagnosing food allergy or intolerance. Clinicians instead use an allergy-focused history, validated IgE testing where appropriate, and supervised elimination and reintroduction for selected non-allergic intolerances.

Is this the right test for you?

This panel should not be chosen to diagnose food allergy or intolerance. Someone with reproducible food-related symptoms is better served by a clinician-led history and, where appropriate, validated allergy testing or a supervised elimination-and-reintroduction plan.

Preparation and collection

Follow the supplied blood-collection instructions; no preparation requirements are stated publicly.

Understanding your result

The report shows which of the listed allergen markers produced measurable IgE and may grade the response. A higher laboratory class does not reliably predict how severe a real-life reaction will be, while a negative result cannot rule out every allergy mechanism.

Your results and next steps

Do not start a broad elimination diet from this report. Discuss persistent symptoms with a GP, allergy specialist or registered dietitian, who can assess reproducible reactions and choose validated investigations.

Limitations

Food-specific IgG4 is not a validated diagnostic test for food allergy or food intolerance. Results may reflect ordinary exposure and tolerance, and unnecessary food restriction can create nutritional risk.

When to get medical help

Sudden breathing difficulty or swelling of the mouth, tongue or throat may be anaphylaxis: call 999 immediately.