The repudiation refers to not eating grains and other staple foods. Once in a while, the repudiation can reduce the gastrointestinal burden to a certain extent, and also has the effect of weight control. But in the long run there is no benefit, but rather it can have adverse effects on the body. The staple food is the main source of carbohydrates, if the lack of carbohydrates, can cause the body’s diet imbalance imbalance, resulting in physiological metabolic disorders and even induce disease. The hazards of repudiation are mainly reflected in the following aspects: 1, indigestion: repudiation will break the normal state of the digestive tract, if the sudden repudiation, do not consume sugar-rich grains, the digestive tract can not adapt, easily causing indigestion, causing abdominal pain, diarrhea, bloating, constipation and other symptoms, long-term development may also cause chronic gastritis, gastric ulcer and other diseases; 2, decreased motor function: the body due to the lack of carbohydrates, the Can not synthesize energy for normal physiological activities, in order to maintain physiological activities may consume body fat, protein and other nutrients for energy supply, a large number of protein consumption can cause a decline in motor function, such as weakness, bad movement and other performance, indirectly causing their resistance to decline; 3, nutritional imbalance: Purging affects the nutritional balance, grains contain carbohydrates, but also contains vitamins and A variety of trace elements, do not eat grains after the Purgatory, easy malnutrition, resulting in blood lipids, blood sugar, may cause hyperlipidemia, diabetes and other diseases, affecting health; 4, weight rebound: reduce carbohydrate intake through the Purgatory, can cause weight loss, but the weight loss effect is very weak, because no intake of staple foods, the body will soon feel hungry, but will instead consume other non-grains of food, such as The consumption of more high-sugar fruits, etc., can cause weight rebound. In addition, the grain is the ancient way of health, but with the changing times, in the modern nutritional science point of view, it is not recommended that the public blindly follow the trend of “grain”, improper grasp of the body is easy to produce damage.