Food Intolerances: Classification of Allergies and Intolerances

Letzte Aktualisierung am 2. November 2026 von Dr. Michael Zechmann-Khreis

Lactose intolerance, fructose malabsorption, food allergies, or celiac disease: They can cause similar symptoms but are based on different mechanisms. The term “food intolerance” serves as an umbrella term for these conditions.

Food allergies involve the immune system. Nonallergic intolerances can occur, for example, when certain food components are not adequately digested or absorbed.

Our interactive overview illustrates these relationships. It shows how the various forms are categorized, how they differ, and where there are overlaps. Select individual terms to learn more about their respective contexts.

Classification of Food Intolerances

This presentation is intended to provide guidance and convey information.

Classification of reactions to food: food allergies, food intolerances, coeliac disease, pseudoallergies, enzymopathies and transport defects Interactive diagram classifying immunological, non-immunological, toxic and psychosomatic reactions.

Select a box to highlight its path. Drag to pan; use the mouse wheel or plus and minus keys to zoom.


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