This study is designed to determine the effect of Gundelia tournefortii extracts on Plasminogen Activator Inhibitor-1, Thromboxane B2, Lipid Profile, Antioxidant Capacity in Patients with Coronary Artery Disease. 45 eligible subjects with angiographically confirmed cardiovascular disease with more than 50% stenosis of at least one of the major coronary vessels will enter to the study.afterwards they will be divided randomly into two intervention and placebo groups. 23 participants in intervention group and 22 participants in placebo group will receive one 500 mg capsules,one time a day for 2 months. personality questionnaire, food frequency questionnaire, 3 days food records and physical activity questionnaire will be completed from study subjects. weight, height, waist, hip circumferences,blood pressure, PAI-1, Thromboxane B2, Lipid Profile and Antioxidant Capacity at baseline and the end of the study will be measured.