Consensus statements. Consensus statements.

In the case of suspected food allergy, the differential diagnosis should primarily include infections, chronic inflammatory diseases including eosinophilic gastroenteritis and mastocytosis, carbohydrate malabsorption or functional or somatoform disorders.	Strong consensus
For differential diagnosis of suspected food allergy, other diseases should be considered depending on the symptoms and the age of the patient.	Strong consensus
If non-IgE-mediated gastrointestinal intolerance reactions are suspected, a gastroenterologist (or pediatric gastroenterologist) should be involved in the diagnostic work-up.	Consensus