Apple allergy is an allergic reaction to proteins found in apples, often linked to Oral Allergy Syndrome (OAS). It commonly occurs in people allergic to birch pollen, as similar proteins in apples can trigger cross-reactivity. Symptoms can range from mild oral discomfort to more pronounced reactions, though severe cases are uncommon.
Individuals with apple allergy, especially those with Oral Allergy Syndrome, may also react to: