Pineapple is a fruit and there is no such thing as cool or hot, and it is not possible to specify whether pineapple is cool or hot. Pineapple is a plant of the pineapple family, there is no such thing as cool and hot, but it has some nutritional value. Pineapple is rich in sugar, vitamins and minerals and other nutrients, and the water content is also relatively high, which can supplement the nutrients needed by the body. The sweet and sour taste of pineapple, moderate consumption can also improve appetite. Pineapple contains bromelain, an enzyme that can break down proteins, which can irritate the mucous membranes of the mouth and may cause discomfort when consumed directly, so it is recommended to soak pineapple in lightly salted water before consuming it. In addition, pineapple contains high sugar, usually should be eaten in moderation, diabetic patients should be appropriate to eat less.