Generally, eating only one meal a day has certain adverse effects on the body, including the tendency to aggravate gastroesophageal inflammation and increase the risk of malnutrition, gallbladder stones and other diseases. 1. Easy to aggravate gastroesophageal inflammation: Usually, if patients only eat one meal a day, because the stomach will secrete gastric acid during the three meals a day, for patients suffering from gastroesophageal inflammation, if there is no food intake, it will cause accumulation of gastric acid, which will cause damage to the stomach and esophagus, including chronic gastritis and reflux esophagitis. 2. Malnutrition: Patients eating one meal a day will cause the body to be unable to replenish the required nutrients, including proteins, vitamins, carbohydrates, etc., so it will result in malnutrition of the body, which will, to a certain extent, cause the patient’s body immunity to be low. 3. Gallbladder stones: patients with normal meals, bile can usually be discharged to the duodenum under the action of the liver and gallbladder, to promote fat digestion and decomposition. If the patient eats one meal a day, it will lead to the storage of bile in the gallbladder through the hepatic ducts when the patient does not eat three meals regularly, which will increase the risk of gallbladder stones to a certain extent. A regular diet of three meals a day is recommended.