Abstract: Objective To analyze the characteristics of human body compositions in patients with non-alcoholic fatty liver disease（NAFLD）,in order to provide scientific basis for the early prevention and therapeutic schedule. Methods The TANITA MC 180 body composition analyzer was applied to measure body compositions,including weight,height,body fat ratio,fat mass,muscle mass,bone mass,visceral fat rating,BMI and some other indexes in 148 patients with NAFLD. Results The high body fat rate in 148 patients with NAFLD was 51.4%,and among them,the high body fat rate in young（18 to 39 year old） patients was 86.3%,significantly higher than 39.3% and 24.4% in middle and old age patients;the muscle mass,bone mass and visceral fat rating in male patients were higher than those in female,and the fat mass and body fat ratio in female were higher than in male （P<0.01）;The body fat ratio and trunk body ratio decreased as the patients with NAFLD got elderly（P<0.01）,and the upper limbs fat ratio and four limbs fat ratio in female patients decreased as the patients got elderly（P<0.01）;the incidence of bone mass below the standard was 49.3%,and the incidence of NASH was 20.3% in this series. Conclusion The main changes of the body compositions among patients with NAFLD are the increase of the body fat ratio and the decrease of the bone mass,and we should take it into consideration that the incidence of excess body fat is higher among the young patients with NALFD.

Key words: Nonalcoholic fatty liver disease, Body compositions, Biological impedance analysis, Body fat ratio