The Impact of a Structured Health Education Program on Clinical Biomarkers and Symptom Burden among Patients with Type 2 Diabetes Mellitus: A Quasi-Experimental Study

Background: Type 2 diabetes mellitus (T2DM) is a global public health challenge associated with substantial morbidity, mortality, and healthcare costs. Effective management of T2DM requires sustained self-care behaviors and lifestyle modifications, in addition to pharmacological treatment. Structured health education programs are considered a cornerstone of diabetes management. Objective: This study aims to evaluate the impact of a structured health educational program on clinical outcomes among patients with type 2 diabetes mellitus, with a particular focus on how education-driven dietary modifications, including increased consumption of functional foods rich in bioactive compounds, may influence metabolic biomarkers and symptom burden. Methods: A quasi-experimental study with pre-and post-intervention assessments was conducted among 130 patients with T2M who were allocated to the study (n = 65) and control (n = 65) groups. Participants were divided into an intervention group (structured health education program over 12 weeks) and a control group receiving routine care. At baseline and at the end of the intervention, Data were collected using structured questionnaires and clinical measures, including body mass index, blood pressure, fasting blood glucose, HbA1c, lipid profile, and diabetes related clinical features. Statistical analyses were performed to compare outcomes within and between groups. Results: Following the intervention, the study group demonstrated significant improvements in body mass index, glycemic control (random blood sugar and HbA1c), blood pressure, and lipid profile compared with baseline and the control group (p < 0.001). Conclusion: The findings indicate that the health education program significantly improves clinical outcomes among patients with type 2 diabetes mellitus. Importantly, these improvements may be partially explained by education-driven shifts toward healthier dietary patterns, including increased intake of functional foods rich in bioactive compounds such as dietary fiber, polyphenols, and unsaturated fatty acids, which are known to enhance glycemic control and metabolic health.