The Food & Drink Reactivity Test combines both IgE Allergy Testing and IgG Intolerance Testing to provide a comprehensive understanding of your body’s response to different foods and drinks.
Why test for both allergies and intolerances?
-
IgE Allergy Testing detects immediate immune responses to specific foods, which can result in symptoms like rashes, swelling, difficulty breathing, or digestive issues. These reactions typically occur within minutes or hours of consumption and may require medical attention.
- IgG Intolerance Testing identifies delayed immune responses to foods, which can take hours or even days to appear. Intolerances are often associated with chronic or recurring symptoms such as bloating, headaches, fatigue, or joint pain.
By testing for both, this dual analysis provides a complete picture of your food reactivity, helping you identify not just severe allergies but also subtler intolerances that may impact your day-to-day well-being.
Common symptoms that may overlap
- Digestive Issues: Bloating, constipation, diarrhoea, or stomach cramps.
- Skin Reactions: Rashes, eczema, or hives.
- Fatigue: Persistent tiredness or lack of energy.
- Respiratory Problems: Sneezing, nasal congestion, or shortness of breath.
- Headaches or Migraines: Recurring or unexplained.
- Joint or Muscle Pain: Chronic aches without an obvious cause.
This mix of allergy and intolerance testing empowers you with knowledge about what your body thrives on and what it struggles with, helping you achieve optimal health.
Key information
- Reactions to 120 items (60 Allergy items & 60 Intolerance items)
- Easy to follow instructions
- Free return envelope to our Lab
- Results in 3 working days (from sample receipt at Lab)
- 30 minute consultation with one of our certified nutritionists
Clinical Testing
Food & Drink Reactivity Test - IgE Blood Test
- Investigating a suspected allergy, particularly fast-onset reactions
- Supporting a wider medical assessment alongside your GP or allergist
- Anyone who wants testing grounded in clinically recognised methodology
If you suspect a serious or rapid-onset allergy, this test should sit alongside — not instead of — professional medical advice. Antihistamines, steroids or immunosuppressants may affect results; speak to your doctor before testing if you're taking any of these.
Compare all three test methods →Who is this test for?
If you've been experiencing recurring allergy-like symptoms and want a clearer understanding of what could be triggering them, this test is designed to help identify potential IgE-related allergic responses so you can take the next step with greater confidence.
Allergy symptoms and severity can vary significantly between individuals. IgE test results should be interpreted in conjunction with clinical symptoms and healthcare guidance.
You may benefit if you experience:
Swelling or puffiness
Sneezing or nasal congestion
Itchy, watery, or irritated eyes
Wheezing or breathing discomfort
Skin flare-ups or hives
Symptoms around pets, pollen, or dust
Seasonal allergy symptoms
What’s tested
Frequently asked questions
Food & Drink Reactivity Test FAQsThe NHS recommends blood testing to diagnose allergies
We provide the gold-standard of IgE testing to your home — with secure results sent directly to you from our certified lab.
"Tests you may have include: a skin-prick test... blood tests... You may be referred to a specialist for tests if a GP thinks you have a food allergy."
NHS.uk — Food Allergy Diagnosis
Source: nhs.uk/conditions/food-allergy/diagnosis/
“Sensitisation to allergens may be investigated in the clinic using skin prick testing, but an easily accessible alternative is the detection of allergen-specific IgE in blood. The performance of allergen-specific IgE for airborne allergens is very similar to skin prick testing.”
University Hospitals Sussex NHS — Specific IgE Tests
Source: pathology.uhsussex.nhs.uk
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