NASH stands for Non-Alcoholic Steato-Hepatitis. It is a type of non-alcoholic fatty liver disease (NAFLD). It is a condition where excess fat is stored in the liver, not caused by heavy alcohol use. NASH is more severe as the excess fat eventually causes inflammation of the liver. This leads to fibrosis or scarring of the liver. In the long run, NASH can lead to cirrhosis or liver cancer. It is a common yet silent disease that is difficult to diagnose, with no approved treatment available. By the year 2020, it is estimated that NASH will be the leading cause of liver transplantation in the US.