Most People Don’t Know This—Do You?
It’s natural for parents to worry when a child reports a strange reaction to a favorite food. For example, if a 6-year-old says their tongue feels itchy after eating strawberries, the cause may be Oral Allergy Syndrome (OAS). OAS occurs when the immune system mistakes proteins in certain fruits and vegetables for pollen allergens. In strawberries, these proteins can trigger itching or tingling in the lips, tongue, or throat, sometimes with mild swelling. Symptoms usually appear within minutes and fade quickly, though severe reactions like trouble breathing require urgent care.
Children often experience OAS more because their immune systems are still developing. Strawberries, in particular, can cause reactions in those sensitive to birch pollen due to cross-reactivity. Interestingly, cooking or processing the fruit usually changes the proteins, meaning strawberry jam or baked goods may not cause symptoms.
It’s important to distinguish OAS from other food issues: unlike digestive sensitivities, OAS involves the immune system but is typically milder than serious allergies such as anaphylaxis.
Parents can manage OAS by avoiding raw strawberries, tracking symptoms, and teaching children to speak up about discomfort. An allergist can confirm the diagnosis and provide guidance. With awareness and simple precautions, most kids can safely enjoy strawberries in some form.