Perhaps you are like many of your fellow sufferers who, after enjoying a cappuccino, healthy yoghurt with fruit or other dairy products, always struggle with digestive problems, lack of energy and laziness? Perhaps you have already taken the first step and switched to a lactose-free diet on your own initiative – after all, the supermarket around the corner now offers all popular dairy products in lactose-free form. But if the symptoms don’t improve despite not consuming lactose, helplessness and desperation are often the result. Does that sound familiar to you?

The easiest way to find out whether you really tolerate milk or not is a quick test that you can easily do at home. After this test you will be sure what you are not tolerating well and you can finally change your diet so that you no longer have any discomfort such as flatulence, diarrhoea or stomach ache. Click here to go directly to the test that you can perform at home.

With this simple method you will not only be sure whether you have an intolerance to milk, gluten, eggs and much more, but you will also receive valuable tips and information on how best to deal with your intolerance. All of this, of course, safely and easily from home, without an uncomfortable and possibly expensive visit to the doctor.

Why do I have complaints despite not using lactose?

What most people do not know: You can not only react to the widely known lactose, i.e. the milk sugar in foods with intolerance symptoms, but also to other ingredients in milk and dairy products.

Because: there are three different components in milk to which one can be intolerant: lactose, whey protein and casein. We have clearly explained the differences between the various forms of intolerance to milk for you here.

What does casein intolerance mean?
With casein intolerance, the body cannot utilise protein components in animal milk products, which consist of 80% casein. As with whey protein intolerance, if you are intolerant to casein, the immune system reacts to the protein components in the milk. The reason for this is often a permeable intestinal mucosa (see Leaky Gut Syndrome).

A casein intolerance can be detected quickly and safely with the kiweno intolerance test, which can be carried out easily and safely at home. In addition to casein, 70 other main foods such as wheat, gluten or nuts are tested for tolerance.

Casein intolerance – the most important facts
Casein intolerance is often mistakenly equated with lactose intolerance. Casein intolerance, however, is an intolerance to the milk protein casein, whereas lactose intolerance is a disorder in the utilization of milk sugar (=lactose).
The equation of a casein intolerance and a lactose intolerance is dangerous for those affected for one reason in particular: in the case of a lactose intolerance, lactose-free milk products can be consumed; in the case of a casein intolerance, all milk products should be avoided. Because even lactose-free milk products contain milk protein (=casein), which is problematic for people with casein intolerance.
What casein intolerance and lactose intolerance have in common, however, are the typical gastrointestinal complaints with diarrhoea, stomach ache, flatulence, nausea, vomiting and listlessness.

Casein intolerance – what to do?

If you have been diagnosed with casein intolerance by means of a blood test, then a strict change in diet over a limited period of time (usually two to three months) is recommended so that your intestinal mucosa can regenerate. With an appropriate diet, a casein intolerance can disappear after some time.

Since the milk protein casein is contained in all animal milk products (including lactose-free ones), you should avoid all animal milk products during the change of diet – it is not enough to switch to lactose-free products! After the waiting period (approx. 2 – 3 months) you can try to slowly reintegrate milk into your diet. In most cases, you will quickly feel the extent to which milk products are tolerated again.

Not recommended foods: all animal milk products such as milk, yoghurt, cheese, cream. Sausages also often contain casein.
Harmless food: vegan products made from soy, oats, rice, almonds or coconut
Determine casein incompatibility with laboratory test
In case of casein intolerance, the body reacts to the protein components in animal milk products (=casein). The cause is usually a permeable intestinal mucosa. Because of the delayed onset of symptoms such as diarrhoea, flatulence, nausea and stomach pain, self-diagnosis is usually difficult. Casein intolerance is also often wrongly diagnosed as lactose intolerance.

However, casein intolerance can be detected easily and quickly with a laboratory test. A laboratory test measures the reaction of the immune system by analysing antibodies in the blood.

However, it is no longer necessary to wait for a long time for an appointment with a specialist to analyse casein intolerance: kiweno offers a safe and accurate intolerance test for use at home. With the simple self-test, intolerances to more than 70 foods such as casein, whey protein, gluten or nuts are determined. Only a few drops of blood from the fingertip are needed for this, which you can take at home with the help of the simple kiweno test kit. Your sample will then be sent to our laboratory free of charge and analyzed by experts.

The laboratory results are processed in an easy to understand form on the my.kiweno online platform. You will also find further individual nutritional recommendations in your profile, which will help you to better deal with possible casein intolerance and other intolerances. If lactose intolerance is suspected, we also recommend the kiweno breath test for lactose intolerance.

If you want to learn more about food intolerances, you can download our free ebook with many valuable tips and information. You can find more tests for testing intolerances and intolerances (such as histamine) in our shop.


Food intolerance test ✓Over 70 foods tested
✓easy to do from home
✓free shipping of the sample to the laboratory
✓comprehensible results online
✓individual dietary recommendations
✓Only available in german speaking countries

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