Comprehensive Antibody Assessment Comprehensive Antibody Assessment is unique. It targets not only likely causes of immediate (IgE) allergic reactions, but also possible sources of delayed (IgG) reactions–the so-called "hidden allergies," whose effects may not show up for hours or even days after exposure to an antigenic substance. Hidden allergies can trigger a wide range of symptoms in virtually every part of the body. Using state-of-the-art ELISA technology, the Comprehensive Antibody Assessment identifies hypersensitivities to over 120 of the most commonly encountered types of food and environmental substances. Test results come with a personalized treatment plan for food allergy called True Relief™, a medically advanced rotation diet guide. This innovative and flexible guide clearly explains the principles behind food allergies, rotation diet, elimination and reintroduction of foods, and allows patients to see at a glance what their problem foods and dietary choices are.