Skipping dinner is usually considered harmful to the body. Skipping dinner may be associated with low blood sugar, increased risk of gastrointestinal inflammation and gallbladder stones. 1. When skipping dinner, due to insufficient energy intake, low blood glucose or hunger may occur at night, which in turn affects the quality of sleep, and some patients with cardiovascular and cerebrovascular diseases may have further adverse effects. 2. When skipping dinner, the gastric acid secretion is not diluted by food, which may affect the gastrointestinal tract, thus increasing the risk of chronic inflammation of the gastrointestinal tract. Some patients with pre-existing gastritis or duodenitis may feel uncomfortable. 3. Skipping dinner is likely to increase the risk of gallbladder stones due to the decreased secretion of bile from the gallbladder. So although skipping dinner may be helpful for weight control in some weight-loss groups, it may do more harm than good.