Jorg Reibig, MD, Specialist in Paediatric Medicine
Intolerances (lat. intolerantia, from tolerare “endure”, “tolerate”) are a causally diverse group of metabolic diseases which occur due to inadequate processing of supplied or released substances. The cause is often an enzyme defect or deficiency. With food intolerances, the body is not able to process certain substances and/or absorb them. Because they operate without participation of the immune system, they are also referred to as pseudoallergies.
Intolerances can cause many different and, to some extent, very considerable symptoms.
These include vague abdominal pain, flatulence, failure to thrive, headache and joint pain but also hyperactivity, concentration disorders, fine motor dysfunction or outbursts of aggression, problems at school, as well as respiratory and skin problems, e.g. neurodermatitis. These conditions can often exist for years without it being possible to identify a cause.
These problems are often a result...