A recent study conducted in Montreal is shedding light on an uncommon childhood food allergy that can land young children in the emergency room due to severe vomiting and dehydration.
Researchers at McGill University Health Centre’s Research Institute closely monitored 87 children diagnosed with food protein-induced enterocolitis syndrome (FPIES), marking the first comprehensive Canadian study on this condition.
FPIES sets itself apart from typical food allergies by not causing common symptoms like hives or breathing difficulty. Instead, affected children may experience intense vomiting, fatigue, and dehydration within one to four hours of consuming trigger foods, often leading to a misdiagnosis of gastroenteritis.
Among the triggers identified in the study, eggs emerged as the most prevalent, followed by seafood, milk, fish, peanuts, oats, fruit, and soy. The researchers noted that symptoms typically manifested at around seven months of age, with most reactions occurring before the child turned two.
Encouragingly, over 80% of the children studied eventually developed a tolerance to their trigger food, and their symptoms disappeared, usually before they reached school age.
The study’s results, featured in the International Archives of Allergy and Immunology, underscore the significance of early detection in helping families avoid unnecessary emergency room visits and dietary restrictions.



