People with cholecystitis need to eat three regular meals and reduce the amount of food they eat, as well as avoiding a high-fat diet and choosing low-fat foods. Cholecystitis is mainly caused by a high-fat diet or other reasons that lead to impaired emptying of the gallbladder and bile collection causing inflammation within the gallbladder. Therefore, cholecystitis patients need to eat three regular meals, while lowering the intake of each meal to reduce the burden of food on the gallbladder. Secondly, a high-fat diet will cause the gallbladder to contract, aggravating the symptoms of cholecystitis patients. Patients need to avoid high-fat foods such as fried foods, canned fish, processed meats, full-fat dairy products, processed baked goods, etc., and opt for fiber-rich, low-fat foods such as vegetables, fruits and grains. The diet of cholecystitis patients need to be carried out under the guidance of a doctor, and should not blindly believe in rumors and prescriptions, so as not to cause serious adverse consequences.