IGHE and Hashimoto thyroiditis: In addition, the results showed that the positive rates of food-specific IgG antibodies were higher than those of inhalant allergen IgE, which led some scholars to suggest that “food intolerance-specific IgG antibodies can be a powerful complement to the detection of allergen IgE antibodies.” The rapid onset of IgE-mediated food allergy, with onset of symptoms within minutes to hours and severe anaphylactic shock, is a far cry from the chronic onset of Hashimoto’s thyroiditis, which is not easy to detect.