Yes.  This is an important point to emphasize. Children generally, but not always, outgrow allergies to milk, egg, soy and wheat. New research indicates that up to 25 percent of children may outgrow their peanut allergy, with slightly fewer expected to outgrow a tree nut allergy. There is no need to assume your child’s food allergy will be lifelong, though for many, this may be the case. If a food allergy develops as an adult, chances are much lower you will outgrow it. Food allergies in adults tend to be lifelong, though there has not been a lot of research in this area.