During our food reaction test, allergies are determined according to IgE and intolerances according to IgG4. Only proteins are examined in the process. Consequently, a lactose intolerance cannot be investigated, as lactose intolerance is an intolerance to milk sugar. Only the milk protein allergy is examined during the food reaction test.
A lactose intolerance can be determined with a respiratory gas test during which the possible production of methane and hydrogen is analysed.

An individual gluten intolerance is examined during the food reaction test. However, it also needs to be understood that gluten intolerance is not the same as coeliac disease. If you would like to have a coeliac diagnosis, you will have to take our coeliac disease test. The simple difference is that no gluten is tolerated in coeliac disease (this even leads to inflammatory changes of the intestinal mucous membrane) while in the case of a gluten intolerance, a certain amount of gluten is indeed tolerated. During our coeliac disease test we also need to increase the concentration of tissue transglutaminase antibodies, the level of which is increased in coeliac disease.