Background: The measures and interventions which contribute to the control of diabetes may play an important role in the disease prognosis. This study was conducted with the aim of evaluating the effect of medical and nutritional care in the control of type 2 diabetes. Methods: This work as retrospective cohort, was conducted on 200 patients diagnosed with type 2 diabetes, utilizing medical records of those receiving medical care. The participants completed the Diabetes Self-Management Questionnaire (DSMQ), which assesses self-care activities pertaining to glycemic control. Additionally, demographic information, disease history, treatment monitoring, self-monitoring of blood sugar, diet data, physical activity, and biochemical tests were obtained for analysis. Results: Out of the 200 patients with type 2 diabetes studied, 45% were male and 55% were female. The majority of patients (90%) lived in urban areas. The study found that patients who received nutritional education, including information on portion sizes, glycemic index, and adherence to weight loss diets, and who were followed up by a nutritionist, had better control of their diabetes. Patients who were aware of normal blood glucose levels and the consequences of uncontrolled diabetes also showed a significant relationship with better control of the disease. Conclusion: Overall, these findings highlight the importance of incorporating nutritional education into the management plan for patients with type 2 diabetes, as it can have a significant impact on both short-term and long-term health outcomes.