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Allergy
Pineapple itself is quite common allergenic and can harm people with high sensitivity to foods. The first signs of pineapple allergy are swelling of the lips, face, itching, and tingling in the throat. In most cases, the symptoms disappear on their own, however everyday use of pineapple by allergy sufferers can put too much strain on the body and cause inflammation, which will lead to other possible diseases.