But the body is a kind of protein, and the delicate skin in the mouth can be "eroded" by the bromelin. Eating pineapple on an empty stomach can hurt the stomach.
但人體亦含有蛋白質，嘴皮較細嫩處就會因蛋白「侵蝕」而覺得被割傷；空腹吃鳳梨也會覺得「割胃」。