Pineapple is not a commonly allergenic food, is not known to contain measurable amounts of oxalates or purines and is also not included in the Environmental Working Groups 2010 report Pesticides in Produce as one of the 12 foods most frequently containing pesticide residues. In fact, pineapple is often used as a fruit in allergy avoidance diets partly for these reasons, and for its bromelain (digestive enzyme) component.