Eating only cucumbers and tomatoes at night helps to lose weight. Because malonic acid contained in cucumber helps to inhibit the conversion of carbohydrates in various foods into fat in the body. Tomatoes are rich in dietary fiber such as pectin, which makes people feel full easily. Fiber can not only be digested by the intestine, but also absorb excess fat and excrete it together. Tomatoes are rich in vitamins, among which vitamin B can promote fat metabolism; Citric acid and malic acid can eliminate fatigue and strengthen blood vessels; Eating a medium-sized tomato can supplement the vitamin C requirement of adults for one day; Coupled with mineral ingredients, the skin will not become dry because of weight loss. Lycopene in tomatoes can reduce calorie intake, reduce fat accumulation, supplement multivitamins and maintain a balanced nutrition. At the same time, the sugar and calories of tomatoes are very low, with only 16 calories per100g. Eating more will not make you fat. Tomatoes are rich in dietary fiber such as pectin, which makes people feel full easily.