When eating less when losing weight, you can help defecation by changing the structure of your diet, such as eating more dietary fiber-rich foods, like cereals or root foods, such as sweet potatoes, taro and beans. In addition, it is also necessary to eat more fresh fruits and vegetables, drink an appropriate amount of water, and pay attention to maintain a moderate amount of exercise every day to help defecation. Of course, if the symptoms of constipation, you can also use laxative medication when necessary, and if the constipation is serious, you need to go to the hospital, with the doctor to improve the e-colonoscopy and stool routine examination, when necessary, you need to cooperate with the specialist to give regular drug treatment. Weight loss must be done in the right way, not blindly through dieting to achieve the effect of weight loss.