A food intolerance response takes place in the gut, and it occurs when you are unable to properly breakdown the food. This could be due to enzyme deficiencies, sensitivity to food additives or reactions to naturally occurring chemicals in foods. Often people can eat small amounts of the food without causing problems.
The Food Intolerance Check assesses your response to 96 foods. Your blood is screened for IgG antibodies to these foods using the ELISA method.
Note that The Australasian Society of Clinical Immunology and Allergy (ASCIA) does not recommend IgG food intolerance testing as a diagnostic tool for food-related symptoms. According to ASCIA, the presence of IgG antibodies to specific foods does not prove the existence of a clinical intolerance or sensitivity. Clinical evaluation, medical history, and elimination diets are the preferred methods for identifying food intolerances or sensitivities.