Moderate eating purple potatoes can lose weight, purple potatoes are a high-quality coarse grains, containing low calories, rich in dietary fiber, dietary fiber into the body is easy to swell cause a person’s sense of satiety, reduce appetite, reduce the intake of other high-calorie foods. Purple potato contains vitamin A, vitamin B, vitamin C, can stimulate the intestinal tract, enhance the peristalsis of the gastrointestinal tract, improve the body’s digestive capacity, conducive to laxative detoxification, reduce the accumulation of waste and toxins in the body, reduce the appearance of obesity and bloating symptoms caused by the accumulation of waste and toxins, has certain benefits for weight loss. Purple potatoes contain trace elements and linoleic acid, high nutritional value, can prevent the emergence of cardiovascular disease, assist the body’s daily activities, effectively promote the body’s metabolism. Accelerated metabolism can also make the body’s fat metabolism speed up, has a positive effect on weight loss. Purple potatoes are rich in starch and sugar, excessive consumption of purple potatoes will make starch and sugar accumulate in the body, so that the body’s calories gradually increase, easy to stomach bloating, body fat and other phenomena.