Food protein–induced enterocolitis syndrome (FPIES) to peanut: Characteristics and long-term outcomes of a large cohort
Food protein–induced enterocolitis syndrome (FPIES) is a non–IgE-mediated gastrointestinal hypersensitivity that typically presents in infancy or early childhood.1 Reactions are characterized by repetitive vomiting 1 to 4 hours after the ingestion of a food trigger, which may be accompanied by pallor, lethargy, and diarrhea. In the United States, childhood FPIES prevalence is estimated to be approximately 0.51%,1 with the most common triggers including typical first foods such as milk, rice, oat, and egg.