Rationale: Premature Coronary artery disease (PCAD) is one of the major cause of death in recent decades. The aim of this study was to evaluate the association of dietary patterns among Iranian patients with PCAD. Methods: In this study, 65 consecutive patients were assessed before their planned coronary angiography. They were interviewed to obtain the nutrients based on a validated food frequency questionnaire. Diet pattern were calculated in each dietary group. Data was analyzed by descriptive statistics. Results: A total of 65 patients, with a mean age of 51.05 years and a mean body mass index of 25.4 ± 4.2kg/m2. 49.2% of patients had high blood pressure and 29.2% had diabetes. Moreover, 35% of patients had hypertriglyceridemia and high LDL-C levels and 36.9%) were smoker. Thirteen patients with PCAD had more than three blood vessels occlusion on angiography (20%) and the rest did not. However,Consumption of Sugars, Soft drinks, hydrogenated fats, and milk was associated with higher PCAD risk.