NAFLD is most prevalent in patients who also have increased visceral adiposity, and our group has previously shown that HIV-infected individuals with increased visceral adiposity generally have decreased growth hormone secretion. Tesamorelin is a growth hormone releasing hormone (GHRH) analogue that increases endogenous growth hormone secretion. Tesamorelin is FDA-approved for the reduction of visceral fat in HIV-infected individuals. In a previous study, treatment with tesamorelin in HIV-infected individuals selected for abdominal adiposity reduced liver fat. The current study is designed to test the effect of tesamorelin on liver fat and steatohepatitis in HIV-infected individuals who have NAFLD. The investigators hypothesize that tesamorelin will reduce liver fat and will also ameliorate the inflammation, fibrosis, and hepatocellular damage seen in conjunction with NASH.