Almost any food or food additive can cause an allergic reaction in children. Common triggers in infant and young children include milk, soy, eggs, peanuts and wheat while older children can have allergic reactions to nuts and seafood.
Food allergy symptoms manifest in a variety of ways depending on the individual which is why it can be difficult to properly diagnose and treat. A food allergy is an exaggerated immune response to diet and can present with a rash, GI or respiratory symptoms and even anaphylaxis.
Non-immune response to diet includes conditions like lactose intolerance, irritable bowel syndrome, and gastroenteritis.
Children can often outgrow allergies depending on the allergen and mechanism.
The relationship between symptoms to foods must be assessed by skin testing where food reactions are present.