Food protein–induced enterocolitis syndrome: Increased prevalence of this great unknown—results of the PREVALE study

Food protein–induced enterocolitis syndrome (FPIES) is a not well-understood type of non–IgE-mediated food hypersensitivity, which mainly affects infants and young children. It consists of gastrointestinal symptoms (persistent vomiting and, sometimes, diarrhea) and lethargy and/or pallor.