It appears age may affect a person’s ability to outlast a food allergy. In general, children may outgrow allergies to milk, egg, soy, and wheat. New research also shows that up to 25 percent of children may outgrow their peanut allergy. However, food allergies in adults tend to be lifelong. The most common food allergies for adults are shellfish, tree nuts, peanuts, and fish.
Symptoms of an allergic reaction can include vomiting and diarrhea. These can sometimes be mistaken for the stomach flu or food poisoning. Currently, avoiding the food you are allergic to is the only way to protect against most food allergy reactions. Researchers are exploring treatments and therapies to help manage food allergies.