Treatment at JUVENIS in Vienna
Lactose intolerance, fructose intolerance and histamine intolerance
Lactose intolerance, fructose intolerance and histamine intolerance: "When the belly twinges."
But what are lactose intolerance and fructose malabsorption? About half of the energy consumed daily comes from carbohydrates. The most important sugars in our food are:
The different sugars must be split in the small intestine so that they can then be transported through the intestinal wall into the blood by a transport mechanism.
If one of these mechanisms does not work, the sugar cannot be absorbed and subsequently passes into the large intestine, where it is metabolized by the resident gut bacteria.
This produces:

Treatments & Therapies
When should you consider the possibility of a sugar intolerance?
If you suffer from a feeling of fullness, bloating, abdominal pain often accompanied by colic-like cramps, as well as diarrhea.
The symptoms often occur very quickly after eating and thus represent a considerable burden for those affected. Disorders of the digestive tract that often go undetected for a long time become chronic and can lead to depression, migraine and menstrual cycle disorders.
Lactose intolerance, fructose intolerance, histamine intolerance – what can you do?
- H2 breath test: this secures the diagnosis in a non-invasive way
- Nutritional counseling: subsequently after diagnosis of a carbohydrate utilization disorder
Please contact JUVENIS by phone at +43 1 236 3020, by e-mail at empfang@juvenismed.at or via the contact form, to arrange a consultation or treatment appointment.
Treatment goals
The aim of any therapy is the restoration of a functioning intestinal mucosa with the correct bacterial flora. To achieve this, fermentation must be suppressed.
Our clinical nutritionist Dr. Daniela Themmer will create a diet plan for you depending on the intolerance, which must be followed for at least 2 months.
If the intestinal mucosa has recovered after 8 weeks, a controlled transition back to a normal diet will begin.
Well-being during and after the diet makes many things easier. Patients often instinctively avoid many products afterwards because they no longer experience bloating, a feeling of fullness, diarrhea or discomfort after eating.
Treatment procedure

Costs
| Diagnosis of lactose intolerance, fructose intolerance, histamine intolerance | Price |
|---|---|
| H2 breath test including detailed discussion of findings (duration 2.5 hours) | € 180 |
FAQs
With an food intolerance the body cannot properly process certain substances (e.g. lactose or fructose). An Allergy on the other hand, is a reaction of the immune system to certain substances. The symptoms can be similar, but the causes are different.
In lactose intolerance, the body lacks the enzyme lactase, which breaks down milk sugar (lactose). As a result, consuming dairy products can lead to symptoms such as bloating, abdominal pain, or diarrhea.
In fructose intolerance, fructose cannot be adequately absorbed in the intestine. This leads to digestive problems such as bloating, abdominal pain, or diarrhea.
In histamine intolerance, histamine is not sufficiently broken down in the body. This can cause symptoms such as headaches, skin reactions, gastrointestinal complaints, or heart palpitations to occur.
Common complaints are:
bloating and abdominal pain
diarrhea or digestive problems
nausea
headaches
skin reactions
The symptoms usually occur after consuming certain foods.
The diagnosis is made through:
detailed medical history
special breath tests (e.g., H2 breath test)
if necessary, blood tests
targeted nutritional analysis
First, a precise clarification of your symptoms takes place. Subsequently, suitable tests are carried out and an individual treatment plan is created.
Therapy is generally based on:
adjustment of diet
avoidance of triggering foods
if necessary, enzyme supplements (e.g., for lactose intolerance)
individual counseling
The goal is to reduce symptoms and improve quality of life.
Many intolerances are not completely curable, but can be alleviated through the right diet very well controlled will be.
Helpful measures are:
Keeping a food diary
conscious selection of foods
gradual testing of tolerance
professional nutritional counseling
The costs depend on the scope of the diagnostics and treatment. H2 breath test including a detailed discussion of findings (duration 2.5 hours) costs from € 180.
The Exact prices will be provided in a personal consultation..
Depending on the examination, a (partial) coverage of costs by the health insurance be possible.
At JUVENIS you will be cared for by experienced specialists cared for. Through targeted diagnostics, individual consultation and modern testing procedures, you will receive a clear diagnosis and a customized therapy plan, to sustainably reduce your symptoms.
We have answered the most frequently asked questions on the topic of Intolerances answered. If you have any further questions, please feel free to contact us via empfang@juvenismed.at or at +43 1 236 3020.
Contact
Responsible for the content of this page: Dr. med. Daniela Themmer
