After gastrectomy, in order to ensure good healing of the anastomosis and recovery of gastrointestinal function, it will take about 4 weeks to resume normal diet, during which you need to follow the doctor’s instructions strictly. After gastrectomy, the gastric stump needs to be anastomosed with the small intestine and the anastomotic scar healed before normal eating, otherwise it will easily lead to anastomotic fistula, duodenal stump rupture and other complications. After defecation, patients can have a full liquid diet; after 2 weeks, they can have a semi-liquid diet; after 4 weeks, they can have a normal diet, which should be light and nutritious, with small and frequent meals to avoid increasing the burden on the stomach and intestines. The specific time for resuming normal diet depends on the patient’s condition, and it is recommended to strictly follow the doctor’s instructions and not to blindly eat privately in order to avoid adverse effects.