Apple

Allergy to apple (Malus domestica) is a food allergy caused by lipid transfer proteins (PTL) found in the skin. Among fruits, Rosaceae family (peach, apple, pear, cherry, apricot, plum, nectarine, strawberry) is responsible for 70% of allergic reactions, and it is more common to occur after adolescence. The apple is the fruit that causes most allergies in Northern Europe. The most common symptoms are oral allergy syndrome (OAS), which can cause itching in the mouth, swelling of the tongue and lips, and hives. This allergy can cause anaphylaxis, and therefore be life-threatening. As a prevention it is recommended to peel the fruit and, sometimes, avoid its consumption.