Boiling water with cucumber, celery and lemon helps to lose weight. Cucumber contains propanedioic acid, which can inhibit the conversion of sugar into fat and promote the excretion of intestinal endotoxin. Celery contains crude fiber and vitamins. It has the advantages of relaxing bowels, regulating the balance of sodium and potassium, low sugar content and helping to lose weight. The organic acids contained in lemons can promote fat consumption, which all help to lose weight. This drink has only auxiliary function, and the weight loss effect is not obvious when used alone. Be careful not to drink on an empty stomach, because it may cause irritation to the gastrointestinal tract.