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Food intolerance

Overview of laboratory services

Food intolerance manifests as physical symptoms that regularly occur after consuming certain food products. Typical symptoms may include abdominal pain, diarrhoea, constipation, nausea and vomiting. Over time, this may lead to weight loss and symptoms of nutritional deficiencies. However, there may also be symptoms outside of the gastrointestinal tract, such as headaches, fatigue and palpitations. Extremely precise diagnostics are an initial requirement for determining the cause of the intolerance when investigating very complex and non-specific symptoms.

Coeliac disease

Coeliac disease is a chronic inflammatory autoimmune gastrointestinal disorder. Ingestion of gluten-containing foods leads to inflammatory reactions in the gastrointestinal immune, causing anything from typical, small intestinal, mucosal lesions to…
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IgE Tests for Food Allergies

Food allergies are usually classical early allergic reactions, but the reaction may follow a variety of courses. The range of reactions triggered by food allergens includes local acute symptoms in the gastrointestinal tract, such as vomiting, nausea,…
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Non-coeliac wheat sensitivity (NCWS)

Non-coeliac wheat sensitivity (NCWS) refers to a symptomatic profile characterised by intolerance to components of wheat. The disease profile of NCWS has not been precisely defined, but affected patients report gastrointestinal symptoms (e.g.…
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IgG Tests for Food Intolerance

The symptoms of IgG-associated food intolerance often occur multiple hours, or even a few days, after consumption, which often makes it difficult to relate them to the corresponding food with certainty. Typical symptoms include flatulence, diarrhoea,…
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Histamine intolerance

Histamine intolerance is defined as an imbalance between histamine accumulation and histamine breakdown. This is caused either by a deficit in the histamine degrading enzymes diamine oxidase (DAO) or histamine-N-methyl transferase (HNMT) or imbalance…
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Fructose, Lactose and Saccharose/Isomaltose Intolerance

Maldigestion of carbohydrates is a frequent cause of chronic abdominal symptoms. The most common symptoms are abdominal cramps, flatulence and diarrhoea. These episodes are triggered by the sugars lactose, fructose and sorbitol, but may also be…
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