Food Reaction Test

Food Reaction Test

Food Intolerance Test + Food Allergies Test Kit

With this food intolerance test kit, you can test food intolerances and food allergies.  The cerascreen® Food Reaction Test is a sample collection and mail-in kit to measure the concentration of specific IgE antibodies to 24 different foods and the concentration of specific IgG4 antibodies to 38 different foodsDo you have unanswered complaints and do not know where to start? Then this food reaction test offers you a helpful initial orientation.

With the sample collecting and mail-in kit for home, you can quickly and easily whether your body reacts with antibodies towards the food that cause most food allergies and food intolerances - simply by collecting a small blood sample. 

Therefore, our laboratory measures the concentration of IgE and IgG4* antibodies in your blood. The food intolerance test thus provides you with initial indications that you can easily follow up on. For a final diagnosis, you can discuss possible allergies with your general practitioner. 

  • Obtain a blood sample easily from the convenience of your home
  • Analysis in a certified medical laboratory (ISO 13485, 9001)
  • Measurement of specific IgE and IgG4 antibodies
  • Receive recommendations tipps that are easy to implement
  • Receive your individual result within few days after sample arrived at the lab 

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Information About the Food Intolerance Test

The Advantages of the Food Intolerance Test

There are countless different food allergies and food intolerances and almost as many tests to get to the bottom of them. Do you have unanswered complaints and do not know where to start? Then the cerascreen® Food Reaction Test offers you a helpful initial orientation. 

Food intolerances or food intolerances can not only be responsible for gastrointestinal complaints. They often manifest themselves through symptoms such as tiredness, skin irritation and burning sensation in the oral cavity. Without a food intolerance test, it is often difficult to identify the causes of such symptoms in everyday life.

To take the cerascreen® Food Reaction Test there is no need for you to consult with your general practitioner, drive to a clinic or wait for an appointment. To collect the sample, you will receive detailed, illustrated instructions and after the analysis you will be provided with a detailed overview of the concentration of antibodies to certain foods. To identify only certain food allergies, learn more about the cerascreen® Food Allergy Test.

Benefit from our expertise: cerascreen® is the market leader in Europe for medical sampling and send-in kits , with 8 years of experience in the development and evaluation of tests. We have developed more than 50 approved send-in test kits (medical products), evaluated 250,000 samples and serve 19 countries.

Which Foods are Tested For?

This cerascreen® Food Reaction Test Kit measures the concentration of specific IgE antibodies to 24 different foods and the concentration of specific IgG4 antibodies to 38 different foods. The test thus covers the foods that are responsible for a large proportion of food allergies in Europe.

Tabelle: List of foods which IgE antibodies are measured against:

Food Group
Tested Foods
Chicken, egg white
Meat Beef, pork, lamb
Fish Salmon, cod
Sea food Shrimp, crab
Dairy Cow's milk
Cereals containing gluten
Gluten-free cereals
Vegetables and potatoes
Carrot, celery, tomato, potato
Seeds Mustard
Soy, peanut
Hazelnut, almond
Peach, kiwi, strawberry, orange, apple

The Results Report

As soon as your sample has been evaluated, you will receive your results report via the my cerascreen®app or your user account on our website. You can easily view the report on your smartphone, tablet or computer and read it in printed form if required.

The laboratory analysis determines the concentration of specific IgE antibodies against certain grasses, herbs and flower pollen in your blood. Learn what you can do to relieve your symptoms during the pollen season with the help of our recommendations. Extensive health information explains the background of pollen allergies, cross-allergies and much more.

View Sample Report

FAQs about Food Allergies + Food Intolerance

  • Why test for food intolerance and allergies?

    Many people suffer from food allergies and intolerances - often without knowing it. In some cases, it is difficult to allocate symptoms to a food in day-to-day life. In the case of food intolerances, reactions can also be quite time-delayed. A Food Reaction Test provides valuable and helpful information on which foods might not be tolerated. 

    Our food intolerance test offers an initial orientation and a wide perspective: both specific IgE antibodies and IgG4 antibodies are determined, and this for a wide range of foods. A large proportion of all food allergies and intolerances can be traced back to the foods examined in the test.

    Important: The cerascreen® food intolerance test does not allow any conclusions about intolerances to lactose, fructose, sorbitol, histamine or gluten. This is due to the fact that these intolerances are not based on IgE and IgG4 antibodies. Cerascreen® offers additional intolerance tests for lactose, fructose, sorbitol, histamine and gluten. 

  • How does the test work?

    To take the food intolerance test, collect a small blood sample from your fingertip with one of the enclosed lancets. Only a few drops of blood are needed. 

    Return the sample using the free return shipping envelope enclosed in the test kit. In the medical laboratory the sample will be analysed to determine the level of certain IgE and IgG4 antibodies in the blood sample. When the analysis is completed, you will receive a notification and can access the results report easily via the online customer area on our website or even easier - via the my cerascreen® app.

    Important: You will get the most reliable results if you have followed a balanced diet for about 2 weeks before taking the sample. Also, please do not eat any foods that you know might cause a strong reaction (i.e. anaphylactic shock). Please do not take any antihistamines either.

  • What does the result tell me?

    The results report of the food intolerance test shows for which foods there are larger amounts of IgE and IgG4 antibodies in the blood sample.

    A table shows to which extent you are sensitised to 24 different foods and food groups - meaning whether there are too many of the food-specific IgE antibodies in your blood sample. This sensitisation tells you how high your immune system's potential is to react with allergic reactions to a certain food.

    The other table shows how strongly IgG4 antibodies to 38 foods are present in the blood. According to alternative medical theories, a medium or strong reaction can give a first indication of whether or not there might be any food intolerances.

  • What kind of recommendations will I receive?

    Neither the IgE nor IgG4 levels are in themselves a diagnosis. Only general practitioners can diagnose an allergy or intolerance with certainty. In both cases it is possible that elevated levels are not associated with discomfort.

    You can use the Food Reaction Test results as a first indication to discuss further steps with your GP. The results report also provides you with tips on how you can further explore which foods you can and cannot tolerate by eliminating certain foods from your meal plan.

    You will also receive recommendations on how to deal with identified allergies and intolerances and how to keep your diet balanced.

  • What do IgE and IgG4 mean?

    Immunoglobulins E (IgE) and Immunoglobulins G4 (IgG4) are two types of antibodies. They are part of the defence component of the immune system. Both IgE and IgG4 are groups of specific antibodies that are specialised in defending against very specific foreign bodies.

    In the case of an allergy, specific IgE antibodies are found in a too high frequency in the body. They cause the immune system to dysfunction when harmless proteins from pollen, animal hair or even food enter the body. The messenger substance histamine is then released, leading to inflammation and the typical allergy symptoms.

    The so called IgG4-mediated food intolerance is an alternative medical theory that is currently not supported by scientific studies. According to the theory, an increased number of specific IgG4 antibodies leads to defensive and inflammatory reactions. The symptoms should usually appear with a time delay - up to hours or days after you have eaten the intolerable food.

  • What kinds of intolerances will be tested?

    In the case of a food allergy or food intolerance, the symptoms usually appear immediately or shortly after eating. Nuts, soya and animal foods such as milk, eggs and shellfish in particular can also trigger a harmful allergic shock (anaphylactic shock), in which a sudden drop in blood pressure can lead to fainting and, in rare cases, death.

    Typical symptoms of food allergy or food intolerance:
    - Skin rashes
    - gastrointestinal complaints such as diarrhoea and abdominal pain
    - Itchy palate and „furry tongue"
    - Respiratory problems up to allergic asthma

  • Which kind of foods cause allergies?

    More than 170 foods can be the cause of allergies and food intolerances. However, there are some foods that are by far the most common triggers. These include:
    - cow's milk and eggs
    - Pulses (especially peanuts and soya)
    - Nuts
    - Wheat
    - Fish and shellfish

    Allergies to various types of fruit, vegetables and spices are somewhat less common.

    Most food allergies start in the childhood. Allergies to cow's milk, eggs, wheat and soya often develop in adolescence, while allergies to nuts, fish and shellfish usually last for the rest of life.

  • What are IgG4-mediated intolerances?

    According to an alternative medical theory, high concentrations of specific IgG4 antibodies are a sign of a n intolerance to certain foods. According to this theory, inflammatory reactions occur in the gut after the consumption of food.

    This link between the concentration of IgG4 antibodies and the presence of food intolerances is currently the subject of scientific controversy.

  • How do IgG4-mediated intolerances manifest themselves?

    IgG4-mediated intolerances may only appear hours or even days after you have eaten the food in question.

    Possible symptoms of food intolerance:
    - Gastro-intestinal complaints, especially flatulence
    - Headaches and migraines
    - Lassitude
    - Whistling breath sounds and running nose
    - Skin rashes

  • What can I do against food intolerances and allergies?

    There is no therapy to cure an allergy or intolerance to food. IgG4-mediated food intolerances can, according to theories, disappear if you have avoided the trigger for a while.

    At present, the only effective way of dealing with food allergies and food intolerances is to identify the reactions and avoid the foods in question.

    If you have a food allergy, medication (antihistamines) can ease the symptoms in the short term if you have consumed an allergen. People who have particularly severe allergic reactions often carry an anaphylaxis emergency kit with an adrenaline injector ("EpiPen") to help them handle anaphylactic shock.

  • For whom is the food intolerance test not suitable for?

    The cerascreen® food intolerance test is not or only partially suitable for certain groups of people:

    • People with infectious diseases like hepatitis and HIV may not use the food intolerance test.
    • People with haemophilia should not take the test.
    • Pregnant and nursing women should only take the Coronavirus Antibody Test under medical supervision.The given reference ranges and recommendations do not apply for people in this group; consult your medical professional for advice concerning your test result.
    • Der Food Reaction Test is not intended for children unter the age of 18.

    The test is not intended to diagnose disease. For example, if you suffer from chronic diarrhea or extreme pain, consult a doctor.


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"Rohe Energie"

"We (Alexandra & Lars) have been dealing extensively with health and the optimization of quality of life through nutrition since 2005. Only through regular monitoring can we stay on the home stretch to grow old healthy and happy."

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FC. St. Pauli

"In performance diagnostics, we have a duty to support our players individually. The tests and results from cerascreen® offer us great added value in the further development of our player talents." (Björn Benke - Head of "NLZ", Young Football Players)"

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