After gastrectomy, it is recommended that patients should eat small meals, chew repeatedly when eating, and consume food that is easy to digest and absorb. Gastrectomy patients due to the lack of stomach as a memory organ, will cause food to enter the duodenum and small intestine quickly, if the amount of food at a time is too large, it will lead to diarrhea and other indigestion symptoms, so it is recommended that the patient should eat less and more frequent meals, less food can reduce the burden of intestinal digestion and absorption of a single meal, and at the same time, more frequent meals to ensure that the supply of energy. Due to the loss of the stomach’s function of grinding food, it is recommended that patients should chew food repeatedly in the mouth and then swallow or eat easily digested and absorbed food, which is conducive to the absorption of food and nutrients in the small intestine. It is recommended that dietary habits be adjusted under the guidance of a doctor to avoid adverse effects.