Objective: The effect of supplementation with sumac on liver enzymes (Alanine aminotransferase and Aspartate aminotransferase ), lipid profiles (Triglyceride,Total cholestrol,High density lipoprotein,Low density lipoprotein), leptin, steatosis of the liver in patients with nonalcoholic fatty liver (Clinical Trial randomized controlled group) study population of patients (men and women) 20-60 years old, with non-alcoholic fatty liver referring to research and treatment Sedighe Tahereh . with Preliminary analysis, criteria for cooperation. A sample of 80 people. During this 12-week study. 40 patients in the group receiving sumac (daily dose of 2g sumac as 4 capsules of 500 mg ) and 40 in the placebo group (daily dose of 2g dextrin as 4 capsules of 500 mg ). at the beginning and end of the study, factors such as anthropometric measurements, blood pressure, Alanine aminotransferase and Aspartate aminotransferase , lipid profile (Triglyceride,Total cholestrol,High density lipoprotein,Low density lipoprotein)), leptin and liver steatosis, a 24-hour recall for 3 days (for 2 days mid-week and 1 weekend day) and international physical activity questionnaire will be measured.