Abstract : Background: Diabetes mellitus (DM) is a global leading killer and cases number of DM had increases dramatically over last decades and expected to continue. Type 2 DM represent more than 95% of DM cases and it affect adults mainly. Recent estimates give that one in each 10 adults got DM. East Mediterranean region including Iraq is the region that have the highest prevalence of DM in world of 14%. Diabetic patients suffer from wide range of nutritional problems, which could negatively affect the control, prognosis, complication of the disease and their quality of life. Objective: to assess of the nutritional status of type 2 DM patients and factors associated with it. Patient and methods: An analytical cross-sectional study. A random sample of 300 patients with type 2 DM. were selected from those attending the diabetes and endocrine center in Thi-Qar province/ Iraq from 1/4/2022-15/9/2022. For each patient, demographic, nutritional and history related to the disease was taken. Anthropometric measures were checked, RBS, HbA1c, lipid profile and body component was examined by human body element analyzer (impedance electrochemistry). A p value of less than 0.05 was considered significant. Results:More than 50% of the sample were obese and 89% were overweight. A significant positive correlation identified between body mass index (BMI) and the central obesity parameters including the pelvis circumference and waist circumference, also breakfast intake and with fat, protein and water content. The protective factor from obesity were in the normal weight group are male sex(p=0.007), address(p=0.006), Type of therapy the patient received(p=0.004) or DM family history (p= 0.003), absence of chronic diseases(p=0.023), smoking (p= 0.0001 ), chronic constipation (p= 0.062)and when the patient rarely eat rice(p= 0.018). Conclusion In T2DM, highly significant and and positive correlation between BMI and the central obesity and between BMI and body component including fat, protein and water content Key word: Diabetes, type 2 diabetes, obesity, nutritional assessment, Thi-Qar, anthropometric