Some children will outgrow their food allergies while others won't. Why?

Nearly eight percent of children in the U.S. have a food allergy, and prevalence has increased in recent decades. But a food allergy diagnosis can evolve, with or without intervention.

In this video, Stephanie Leeds, an associate professor of pediatric allergy and immunology at Yale School of Medicine, explains why milk and egg allergies are more commonly outgrown than tree nut or shellfish allergies — and what that can mean for testing, tolerance, and treatment.