Lactose intolerance test


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Delivery Time: approx. 2-3 business days

Your lactose intolerance test provides you with quick and painless certainty as to whether you suffer from primary, genetically determined lactose intolerance.

What is tested and how

  • Using a saliva sample, your DNA will be tested for irreversible, primary lactose intolerance.
  • Our accredited laboratory in Germany performs an analysis of the LCT gene (-13910-T/C) polymorphism for this purpose.
  • The integrity and security of your data has top priority! Therefore, the sample material is destroyed immediately after the analysis and your result is processed fully anonymized with the supplied 16-digit identification code.

Your way to more well-being

  • You will receive your clear result with clear recommendations for action in case of primary lactose intolerance by e-mail.
  • Understand and find your ideal diet that will optimize your health and wellness.
  • In case of digestive problems, it may be useful to support your intestinal flora with probiotics for a while in addition to a change in diet.

Lactose intolerance symptoms

  • Occur 30-120 minutes after eating
  • Abdominal pain, flatulence, diarrhea, constipation
  • Further also recurring headaches, moodiness and fatigue

How it works

  • Speichelprobe Icon

    Collect saliva sample at home

    With the kiweno self-sampling test kit, you take a saliva sample by simply swabbing your cheek.

    Important! All utensils for sample collection are included in the product.

  • Laboratory analysis

    Your sample will be sent free of charge to our accredited partner laboratory for analysis in Germany.

    The analysis takes about 5-10 days after receipt of the sample in the laboratory.

  • Ergebnisse

    Receive test results

    As soon as your result is available, you will receive it anonymized with your 16-digit identification code via e-mail.

  • Empfehlungen


    We do not leave you alone with your result! On our knowledge platform you will find many helpful tips & tricks for dealing with lactose intolerance!

Laboratory quality for home

With this kiweno home laboratory test you can safely and easily take a saliva sample and rely on the professional, discreet evaluation in our German partner laboratory.

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Video tutorial (in German)
  • Your Stories

    „I have suspected for some time that I have a lactose intolerance, but until now I could never have this checked. I am very relieved to finally have certainty on this point and I can plan my diet very differently.“

    — Josefine, Influencerin
  • Your Stories

    „The test includes everything you need to find out if you have primary lactose intolerance.
    (…) It really couldn’t be simpler.“

    — Susi, Bloggerin
    Susi Schwarzl von myfodmap mit dem kiweno Laktose Intoleranz Test


What is lactose intolerance?
Lactose intolerance is a disordered utilization of milk sugar (lactose). The intolerance occurs due to a defect or deficiency of the enzyme lactase. If the organism does not have a sufficient amount of lactase to utilize lactose, the two-fold sugar cannot be split. The uncleaved lactose thus reaches the large intestine, where it does not really belong. Consequently, hydrogen, carbon dioxide and short-chain fatty acids are formed in the large intestine.
What are the symptoms of lactose intolerance?
Typical symptoms are flatulence, abdominal pain, diarrhea, bloating, constipation, skin blemishes and, in rarer cases, heartburn, fatigue, migraine and low back pain. These occur after the consumption of dairy products.
What is the difference between primary and secondary lactose intolerance?
Primary or hereditary adult lactose intolerance refers to a genetically determined lactase deficiency. Lactase production ceases with age and lactose can no longer be digested without symptoms after a certain point in time. This form of intolerance can be determined or ruled out with the kiweno lactose intolerance genetic test.
Secondary lactose intolerance is considered to be the result of intestinal damage. Lactase production is reduced due to damage to the intestinal mucosa and the same symptoms occur as in primary lactose intolerance. As soon as the intestinal mucosa has regenerated (intestinal rehabilitation), lactase can be produced again and lactose can be consumed without restriction.
What is the difference between lactose intolerance and milk incompatibility?
In lactose intolerance, there is a lack of lactase in the small intestine, which means that lactose cannot be broken down and thus cannot be absorbed into the blood. Symptoms (such as abdominal pain, flatulence, diarrhea) appear after 30-120 minutes after consumption of lactose-containing products.
An incompatibility is an excessive reaction of the immune system to protein components of food. In the case of milk, this would be casein, for example. Symptoms such as abdominal pain, diarrhea, but also headaches and skin rashes occur only after 6-72 hours of consumption. Food intolerances can be diagnosed with a blood test.
What is the difference between lactose and casein?
Lactose is a sugar contained in milk and dairy products, whereas casein is a protein component of milk.
Note: The kiweno incompatibility test* tests, among other things, for the milk protein casein, but not for milk sugar (lactose). The kiweno lactose intolerance genetic test, in turn, determines whether you may suffer from primary lactose intolerance.
* The kiweno incompatibility test is available exclusively in Austria.
What is examined with the kiweno lactose intolerance genetic test?
In the kiweno lactose intolerance genetic test procedure, the “LCT gene (-13910-T/C) polymorphism” is examined without exception. This section of the DNA strand contains the necessary information about a possible genetic lactose intolerance. No further genetic examinations of the sample material are performed.
What does real time PCR mean?
In a polymerase chain reaction (PCR), a specific section of the DNA strand is isolated and multiplied. To find out which allele (gene variant) is present, a dye is added during the multiplication, which dissolves again when the sample is heated (melting curve analysis). Since the different genotypes have different ‘melting points’ and thus the color disappears at different temperatures, the process becomes measurable.
By copying the gene variant (including the dye) millions of times and then heating it (melting curve analysis), it becomes visible which variant is present and a test result is obtained with corresponding medical consequences.
What does the result of the kinweo lactose intolerance genetic test tell me?
The test result of the lactose intolerance genetic test is a laboratory-analysed finding that describes the presence or absence of a specific mutation. The necessary medical consequences can then be derived from this. In the kiweno lactose intolerance genetic test, the following three results may be present:
Genotype homozygous C/C: hereditary adult (primary) lactose intolerance confirmed with corresponding clinical symptoms.
Genotype heterozygous T/C: no evidence of hereditary adult (primary) lactose intolerance. Carriers of this heterozygous genotype show reduced lactase activity, which is not considered a predisposition for lactose intolerance.
Genotype homozygous T/T: no indication of hereditary adult (primary) lactose intolerance.
What happens to the sample material?
The certified partner laboratory of kiweno uses the genetic sample exclusively for the initiated genetic analysis (“Investigation of the LCT gene (-13910-T/C) polymorphism”). No further genetic analysis of the sample material will be performed. The sample material will be destroyed immediately after completion of this examination.
Note: In order to ensure maximum data security, the result will also be processed purely anonymously with the 16-digit identification code provided.
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