Short-Term Nutritional Enhancement Combined With Health Education in Postoperative Colorectal Cancer Patients: A Randomized Controlled Trial

Participants receive individualized oral nutritional supplementation based on energy and protein requirements, calculated using the Harris-Benedict equation and body weight (1.2-1.5 g protein/kg/day). The supplement may include complete nutrition powder, whey protein powder, and compound multivitamins. The intervention is prescribed and monitored by a clinical nutrition team and adjusted every 3 days during the 14-day intervention phase. The goal is to ensure both energy and protein intake targets are met. Supplements are administered in addition to standard meals.

For participants unable to meet nutritional goals through oral intake, parenteral nutrition is administered intravenously. The formulation includes amino acids, glucose, lipids, electrolytes, trace elements, and vitamins. Dosages are aligned with those of the enteral nutrition group, ensuring a consistent intake of energy and protein (1.2-1.5 g/kg/day protein). Formulation and administration follow standardized hospital protocols and are supervised by the nutrition support team.

"Participants receive structured health education focused on nutrition, physical activity, and psychological well-being. The education is delivered over 14 days using a digital Internet Plus platform, featuring weekly videos, interactive Q\&A sessions, and guidance from a multidisciplinary nutrition support team. Educational content covers dietary recommendations, exercise safety, stress management, and post-treatment recovery strategies. Materials are updated weekly, and participants may access them remotely via smartphone or tablet. This intervention aims to improve nutrition knowledge, adherence, and health behavior change."