A new dietary questionnaire effectively tracks nutritional status post-gastrectomy for gastric cancer.

• Dietary volume intake drops to 39.7% one month after surgery, rebounding to 74.8% by one year (p < .001).
• Significant correlation found between dietary volume and caloric intake (r = 0.299-0.599) and weight loss (r = -0.119 to -0.301).

This tool can help surgeons identify at-risk patients and tailor nutritional interventions for better outcomes.

• Nutritional risk scores peaked at one month but improved with time, emphasizing the need for early dietary support.