Pineapple and pineapple are not the same fruit, but two similar fruits. The difference between the two is that the leaves of pineapple have no teeth, and the flesh tastes sweet. The leaves of pineapple have teeth, and the flesh can only be eaten after being soaked in salt water. Pineapple belongs to pineapple family, pineapple belongs to perennial herbaceous fruit plant, with rapid nutritional growth and short production cycle. It can grow all year round in areas where the annual average temperature is above 23 ℃; Pineapple fruit is rich in nutrition. In addition to reducing sugar, sucrose, protein, crude fiber and organic acid, the pulp also contains vitamin C, carotene, thiamine, niacin and other vitamins necessary for human body. As well as calcium, iron, magnesium and other trace elements easily absorbed by the human body. The protease contained in pineapple juice, peel and stem can help digestion of protein and increase appetite. In medical treatment, it has the effects of treating various inflammation, dyspepsia, diuresis, menstruation, and expelling parasites, and has a certain medical effect on nerves, intestines and stomach.