In this study, patients who referred to an endocrinologist, will be assessed in order to determine the Effects of Chamomile tea consumption on metabolic status, oxidative stress and inflammation in type 2 diabetic patients. Inclusion criteria consists of: at least 6 months history of diabetes; usage of blood sugar lowering drugs; age between 30 and 60 years old and exclusion criteria are: Pregnancy and lactation; liver disease, kidney, heart disease, thyroid disease, and inflammatory disease. Thirty two subjects will be divided into two groups randomly (taking Chamomile tea and control). Intervention groups will receive daily 3 cups of chamomile tea (each cups contain a 3 grams of Chamomile tea bag in 150cc boiled water) immediately after the meal for 8 weeks and we will recommend the control group to use the same amount of boiled water daily instead of Chamomile tea in this period. Every 2 weeks, Compounds will be delivered to people. For each Patient questionnaire will be filled and general characteristics، anthropometric measurements (height and weight to calculate BMI) will be assessed. For each patient, 24-h recall questionnaire will be filled in order to assessment of food intake for 3 days a week (2 working days and 1 holiday). These questionnaires will be completed at baseline، end of 4th week and 8th week of the study. Ten ml blood sample from each patient will be taken after 12-14 hours fasting at the beginning and end of the intervention, and fasting blood glucose levels, HbA1c, fasting serum insulin, insulin resistance, serum lipids, hs-CRP, TNF-a and Indicators of oxidative stress including total antioxidant capacity, malondialdehyde , catalase, glutathione peroxidase and superoxide dismutase in both groups before and after the intervention will be measured.