Aims: Glycemic control through an appropriate nutritional regimen plays a key role in the treatment of type 2 diabetes. This study evaluates the effectiveness of nutritional education and communication interventions for inpatients with type 2 diabetes at Hue Central Hospital. 

Methods: An interventional study on a group of 202 hospitalized patients with type 2 diabetes (52% male and 60.4% ≥ 65 years old) at Hue Central Hospital from January to June 2025. Patients were assessed for laboratory indices, nutritional status, knowledge, and behaviors before and after a multimodal nutrition education program (lectures, group counseling, leaflets, individual guidance). Nutritional adherence was reassessed 7 days after discharge using the PDAQ scale; data were analyzed with SPSS 20. 

Results: Nutrition knowledge and behaviors improved significantly after the intervention compared to before (p<0.05). Seven days after discharge, 69.8% of patients adhered to the PDAQ diet; women and the high-income group had better adherence. Women had 3.39 times higher odds of adherence than men (95% CI = 1.72–6.69, p < 0.001), and the income group >10 million VND/month had the highest odds of adherence, 6.05 times higher (95% CI = 2.24–16.35; p = 0.000) compared with the income group <5 million VND/month. Conclusion: Nutrition education and communication interventions clearly improve knowledge, behaviors, and dietary adherence in people with type 2 diabetes. The model should be expanded at healthcare facilities with simple, easy-to-understand content and increased post-discharge support to enhance long-term effectiveness and patients' quality of life.