IGHE and food allergy: In IgE-mediated food allergy, also known as type I food allergy, the allergic immune response induced by food proteins is characterized by the production of T-helper type 2 (Th2) cytokines, presence of antigen-specific serum IgE antibodies, and also an infiltration of eosinophils and an increase in the number of mast cells in the intestinal tract [1, 2].