Can the food reaction tests also measure lactose and gluten?

Our food reaction tests (Food Sensitivity & Allergy, Extensive Food Sensitivity & Allergy) determine allergies according to IgE and intolerances according to IgG4. This process only examines proteins. Consequently, a lactose intolerance cannot be investigated, as lactose intolerance is an intolerance to milk sugar. The food reaction test can only detect an allergy to milk protein. 

A lactose intolerance can be determined with a respiratory gas test during which the possible production of methane and hydrogen is analyzed. 

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. 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. 

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