The first point is that it can laxative, promote the peristalsis of the stomach and intestines, which is very beneficial to improve the constipation of patients, and also accelerate the excretion of toxins in the human body. The second point is that pineapple boiled water can significantly reduce blood lipids, reduce calories, especially to improve the body’s fat accumulation to help lose weight has some benefits. The third point is that pineapple boiled water can relieve the symptoms of inflammation, such as the symptoms of cold and bronchitis, as well as sore throat and cough, which can be treated with the aid of pineapple boiled water. The contraindications of pineapple boiled water are mainly two: the first point, allergic patients are not able to apply, certain patients are prone to allergic reactions such as laryngeal edema to nutritious substances such as pineapple, which is contraindicated and cannot be eaten. The second point is that patients with prolonged diarrhea are not able to eat pineapple boiled water.