1. Apple: Apple is one of the low-calorie foods, which contains a lot of carbohydrates and dietary fiber, and it is easy to increase satiety after eating apples. Eating an apple before meals can control the food intake of dieters, thus achieving the effect of losing weight.

2. Grapefruit: Acidic substances in grapefruit can help the human body secrete digestive juice to promote digestive function, and pectin in grapefruit can reduce the secondary absorption of food.

3. Tomatoes: The fruit acid contained in tomatoes can lower cholesterol, thus having a certain weight-loss and lipid-lowering effect.

4. Kiwifruit: Kiwifruit contains an enzyme that can decompose protein, which can decompose protein in food into small molecular amino acids and reduce fat accumulation. Kiwifruit contains lysine and methionine, which can help carnitine synthesis and promote fat burning.

5. Blueberries: Blueberries are rich in polysaccharides, flavonoids and water-soluble dietary fiber, and have the function of losing weight.