The most common non-IgE-FA is eosinophilic esophagitis (EoE), but other known disorders include non-EoE eosinophilic gastrointestinal disorders (non-EoE-EGID), food protein-induced enterocolitis (FPIES), and food protein-induced allergic proctocolitis (FPIAP). This evidence concerns the gene IGHE and eosinophilic esophagitis.