Intolerance Test

63 Common Items Tested

From 119.0089.00

Suffering from symptoms that occur after eating and you suspect food intolerances? The intolerance test is an easy home-to-lab blood test of 63 common triggers.

  • 63 intolerances tested (food & drink)
  • Receive blood collection kit, take blood spot sample, post submission envelope back to us
  • PDF results are sent securely to your email and app within 7 days of receiving a sample
  • Upgrade to our Allergy & Intolerance Test for an extra €16!

Save money and get tested all at once with our couples & family options.

SKU: intolerancescreen Categories: ,

CE marked kit

Fast results

FREE 1-3 day delivery

Secure process

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450,000+ customers

Our standard intolerance test is a fast and cost-effective way of screening for 63 of the most common food intolerances. Using ELISA testing for raised IgG4 antibodies, this test offers accurate lab results to enable you to optimise your diet.

Raised IgG4 (Immunoglobulin G) antibodies can indicate a food intolerance. IgG4 responses are more common than IgE (allergy), which cause an immediate reaction. Food intolerance reactions can be more difficult to self-diagnose since they can occur hours or even days after consumption of an offending food.

Using results from this test will provide valuable guidance with dietary adjustments required to relieve symptoms.

Purchase and Delivery

Following the simple and secure payment process, you will receive free delivery of our CE approved sample collection kit within 3 working days including easy instructions on how to complete your test.

Sample and Results

Just a few spots of blood are required using a pin-prick lancet within the kit. Send everything to our labs in the envelope provided, and we'll do the rest. We notify you when your sample arrives, and you will receive results from our lab to your email and our app in under 7 days.

Customer Satisfaction

All tests are protected by our TrustedShops Guarantee, and customer satisfaction is surveyed on every purchase via our own survey and through TrustedShops.

Also Included:

  • A full guide on how to perform an elimination diet of reacting items

Symptoms you might be suffering from

Our intolerance tests can help you identify the triggers related to digestive symptoms associated with food intolerances. This information can then be used to remove or reduce contact with these items or seek a further medical investigation. Symptoms can also include:

  • Bloating
  • Fatigue
  • Nausea
  • Stomach cramps
  • Loose stools

Items included within our Intolerance test:

  • Almond
  • Amaranth
  • Apple
  • Banana
  • Barley
  • Bean, green
  • Beef
  • Blue mussel
  • Buckwheat
  • Button mushroom
  • Cabbage
  • Cacao
  • Carrot
  • Celery
  • Chicken
  • Cod
  • Coffee
  • Cow’s milk
  • Cucumber
  • Duck
  • Durum Wheat
  • Egg white
  • Egg yolk
  • Garlic
  • Ginger
  • Gluten
  • Goat Milk
  • Hazelnut
  • Herring
  • Kiwi Fruit
  • Lemon
  • Lentil
  • Maize
  • Mustard
  • Oat
  • Olive, Green
  • Onion
  • Orange
  • Oyster
  • Pea, green
  • Peanut
  • Pineapple
  • Pollock
  • Pork
  • Potato
  • Pumpkin Seed
  • Quinoa
  • Rice
  • Rye
  • Salmon
  • Sheeps milk
  • Shrimp
  • Soy
  • Strawberry
  • Sunflower Seed
  • Sweet basil
  • Tomato
  • Trout
  • Tuna
  • Turkey
  • Walnut
  • Wheat
  • Zucchini

What's inside the testing kit?

1 x Alcohol wipe
1 x Plaster
1 x Absorbent pad
1 x Five Spot Blood Card
2 x Lancets CE 0344 (pin-prick system)
1 x Return envelope
1 x Activation card with adhesive label

How to take your sample


Receive your testing kit in the post


Clean your finger and use the finger prick to take your sample


Fill the blood spot card with your sample


Mail your sample to our labs for testing

The Science

This test uses the IgG4 in your blood sample for intolerance testing, but what does that mean?

IgG and IgE antibodies play an important role in our immune system. The immune system helps our body to fight infections and inflammation caused by external invaders known as antigens like viruses, bacteria, parasitic worms and proteins. We have four classes of IgG antibodies: IgG1, IgG2, IgG3 and IgG4(1). For the Intolerance Test, we are using IgG4 to help us in the identification of those non-immunological responses that can be the cause of common symptoms like: bloating, headaches, stomach pains and diarrhoea.

Why IgG4?

The IgG4 antibodies can influence the inflammatory response but not activate it. We are using IgG4 in our intolerance tests because we are investigating delayed symptoms that could be associated with food and non-food intolerances (1,2). These do not cause an immediate immunological response, however, could still be causing you problems. For food intolerance, the presence of specific IgE and IgG antibodies can be observed. Some subclasses of IgG (mainly IgG4) inhibit the degranulation of basophils and mast cells and the activation of the complement cascade (2).

At Allergy Test Ireland, we use IgG4 exclusively for qualitative intolerance testing. Our tests are not used for the diagnosis of acute or chronic food intolerances; however, we are helping you to draw a map of the reactions that could be the cause of your symptoms. 60% of the world’s population suffers from food intolerance to at least one food antigen. This test is not a quick fix but can help you in your journey to find a better version of yourself. To find out more about the science of IgG4 testing, click here.


1. Aalberse RC, Stapel SO, Schuurman J, Rispens T, Immunoglobulin G4: an odd antibody. Clin Exp Allergy. 2009; 39(4): 469-77.
2. Velikova T et al. Methods for detection of food intolerance. RAdvFoodSci: 2018: 1(3): 106-119

  • Removal of raised IgG4 items may improve lifestyle based on testimonial evidence.
  • CE approved sample collection kit.
  • Results do not constitute a medical diagnosis on their own, but may be used by your doctor or nutritional therapist to help form a diagnosis or rule out a condition.
  • Quantitative data using an ELISA testing methodology. All values measured in Kilounits per antigen per litre (KUA/L), our scale uses a universal cut off point of 0.35 in classifying a reaction.
  • >97% reproducible results. IgG4 values may change over time with diet.


Blood (ELISA) tests define an intolerance/sensitivity as a specific IgG4 antibody reaction and an allergy as a specific IgE antibody reaction (IgE-Mediated).

All information in the reports produced is intended to support nutritional advice to optimise your diet. The results cannot be used to diagnose, treat or cure medical/health conditions.

The use of antihistamines prior to or during the blood sample collection process may affect your results, please contact our team for further advice.

Always seek the advice of your doctor or other qualified health providers if you have a medical condition and/or medical symptoms. Never disregard professional medical advice or delay in seeking it.

  • Same day dispatch on orders placed by midday
  • Easy return envelope enclosed with your kit
  • 14-day cancellation period if you change your mind
  • Fast track option available at the checkout, get your blood results within 48 hours of your sample arriving at our laboratory
  • Nutritional therapist sessions available at the checkout are used to discuss your results.

Read reviews from our

450,000+ customers

Jess F

No symptoms!

"I found out I was allergic to soy. I stopped eating it straight away. I now have no symptoms."

Read trusted shops >

Frances H

Informative report

“It's a great price for a blood test. The report was great and so informative."

Read trusted shops >

Bower E

Impressive results

“I've had blood tests before, this gave more results. Many confirmed intolerances."

Read trusted shops >

Edith C

Easy to do

“Always been a bit of a wimp when it comes to blood. But this was so quick and easy to do I didnt flinch once."

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Frequently asked questions

Allergy & intolerance testing