Eat more greens have a weight loss effect, greens are rich in nutrients, but the fat content is very low, carbohydrates in the form of cellulose, polysaccharides can not be absorbed by the body, so greens have no fattening effect. Eat more greens can stimulate the stomach wall, produce a feeling of fullness, reduce the intake of other foods and play an indirect role in weight loss. If you do not reduce the intake of fat and carbohydrates while eating green vegetables, it is difficult to exert weight loss effects. Weight loss fundamentally lies in limiting the intake of fat and absorbable carbohydrates, and taking care to increase exercise. If you already have obesity, you can increase the amount of exercise such as running and swimming at the same time, you can eat more small green food before eating the main food, using the occupancy effect of green vegetables to reduce the intake of main food and play a weight loss effect.