How common is tree nut allergy?
Peanut allergy is the commonest nut allergy and affects about 1% of children. It is the commonest cause of serious food allergic reactions. In a Western community about 1 in 500 children (0.2%) react to tree nuts. It seems that allergy to some tree nuts, eg cashew nut, is becoming more common. Tree nut allergy is likely to occur in individuals with other allergic diseases (asthma, atopic dermatitis, and other food allergies).
