About 30% of people in the US have a disease characterised by abnormal deposits of fat in the liver. The disease is not contagious, and unlike many other disorders of the liver, it is not caused by overconsumption of alcohol. It is non-alcoholic fatty liver disease (NAFLD) and has become theleading cause of chronic liver disease in many countries around the world.
It is normal to have fat in the liver. However, if the amount of fat is more than 5-10% of the weight of the liver, fatty liver disease is probably present. But why is having much fat in the liver a bad thing?NAFLD may progress to non-alcoholic steatohepatitis (NASH) which is associated with inflammation and may result in chronic scarring of the liver and liver cancer . Furthermore, patients with NAFLD have an increased risk of cardiovascular disease.