 Sedentary lifestyle and poor dietary choices are leading to a weight gain epidemic and increasing the risk for developing nonalcoholic fatty liver disease NAFLD. NAFLD is a group of diseases with too much fat in liver in the absence of excess alcohol consumption. NAFLD encompasses a histological spectrum ranging from simple hepatic steatosis to nonalcoholic steatohepatitis NASH, advanced fibrosis, and cirrhosis. NAFLD is estimated to affect 25 of the worldwide population1 and 15.35 of adults in shanghai urban area2. Epidemiological data showed that the fatty liver may predict, independent of other factors, the metabolic syndrome, type 2 diabetes, and cardiovascular disease. Therefore, we may prevent those diseases by treating NAFLD.Life style intervention including activity and reducing energy intake is recommended by health care providers for optimal health and is the most common prescribed therapy for individuals diagnosed with NAFLD. 