Wheat & Gluten Allergy Test London
This page explains the key differences between IgE wheat allergy, coeliac disease, and NCGS pathways. Our service is nurse-led and diagnostic-only: we provide venous sample collection and laboratory reports; diagnosis and treatment decisions remain with your GP or specialist.
Safety note
If severe breathing symptoms, throat swelling, collapse, or suspected anaphylaxis occur, call 999 immediately. Blood testing is not an emergency service.
IgE wheat allergy vs coeliac disease vs NCGS
| Pathway | Mechanism | Testing context |
|---|---|---|
| IgE wheat allergy | Immediate allergic immune pathway | Specific IgE and wheat components can support assessment |
| Coeliac disease | Autoimmune pathway | Coeliac serology and specialist pathway, not diagnosed by IgE alone |
| NCGS | Diagnosis of exclusion | Considered after coeliac and wheat allergy pathways are addressed |
Omega-5 gliadin and exercise-related reactions
Omega-5 gliadin is a wheat component that may be relevant where symptoms occur in exercise-linked wheat reactions. It is a supporting marker and does not replace clinical diagnosis.
Interpretation should include timing of food intake, exercise, co-factors (such as NSAIDs or alcohol), and prior reaction history.
Wheat Components Test
Component-focused IgE pathway including omega-5 gliadin context.
View Wheat Components Test →Gluten Sensitivity Profile
Broader gluten/coeliac-related blood-test context where clinically appropriate.
View Gluten Profile →Frequently asked questions
What is the difference between IgE wheat allergy and coeliac disease?
IgE wheat allergy is an immediate immune allergy pathway to wheat proteins. Coeliac disease is an autoimmune condition involving different antibody and biopsy pathways. They are distinct conditions and require different clinical interpretation.
What is NCGS?
NCGS (non-coeliac gluten sensitivity) is a diagnosis of exclusion when coeliac disease and wheat allergy are not confirmed but symptoms appear related to gluten-containing foods.
Why is omega-5 gliadin important?
Omega-5 gliadin is a wheat component that can be relevant in wheat-dependent exercise-induced reactions. Results are supportive markers and must be interpreted by your GP or specialist with full clinical history.
Can this page or test diagnose my condition on its own?
No. This is a diagnostic support pathway. Our clinic provides nurse-led blood sample collection and laboratory reporting only. Diagnosis and management remain with your GP or specialist.