Cornstarch can be eaten properly when losing weight. Cornstarch is a staple food made from dried corn ground into a powder. 100 grams of cornstarch has a calorie content of 360 calories, of which the carbohydrate content is about 75%, the fat content is about 3.8%, the protein content is 3.8%, and 100 grams of cornstarch contains 7.3 grams of dietary fiber, and the content of different kinds of cornstarch may vary a little. Cornstarch calories are about the same as rice and flour, so its main role is to provide energy and carbohydrates. Because of its dietary fiber content relative to rice, flour and these refined grains significantly higher, the sense of satiety is relatively strong. But to control the total amount of weight loss period, otherwise the same can make people gain weight, not to achieve the purpose of weight loss. Weight loss is not only to control the diet, at the same time to ensure dietary diversity. Recommended cornstarch and other staple foods together, roughage and refined grains half each, while combining exercise to better achieve the purpose.