Objective:To explore the application effect of postoperative refined early dietary plan in the enhanced recovery of patients undergoing hepatectomy for primary liver cancer, and to provide scientific evidence for optimizing postoperative dietary structure and increasing oral energy intake of patients.

Methods:In this randomized, parallel-controlled trial, 142 colorectal cancer survivors meeting inclusion criteria were recruited from a tertiary hospital in Hefei, Anhui Province. Participants were randomly assigned in a 1:1 ratio to either the dietary intervention group or the conventional diet group. Both the standard care group and the dietary intervention group received 5 days of routine dietary care. The dietary intervention group additionally received specialized meal plans and whole protein supplements beyond the standard care regimen. Dietary intake, nutritional status, and postoperative recovery outcomes were measured and compared between the two groups.

Inclusion Criteria:

• (1) Pathologically confirmed diagnosis of primary hepatocellular carcinoma; (2) Underwent elective (partial) hepatectomy; (3) Age 18-80 years; (4) Basically normal renal function and preoperative Child-Pugh liver function grade A or B; (5) Voluntary participation in the study and signed informed consent.

Exclusion Criteria:

• (1) Concurrent malignant tumors; (2) Postoperative deterioration or contraindications to oral intake (e.g., dysphagia, intestinal obstruction); (3) Severe malnutrition or other disorders affecting nutritional metabolism; (4) Major intraoperative complications (e.g., massive hemorrhage, bile leakage, intra-abdominal adhesions); (5) Postoperative transfer to the ICU.