Human: I have been told that I have a fatty liver. What is that? Assistant: 
Fatty liver disease is a condition in which the liver becomes filled with fat. It can be caused by a number of things, including drinking too much alcohol, eating too many calories from saturated fat and cholesterol, or having a genetic predisposition to it. Symptoms include fatigue, abdominal pain, nausea, and vomiting. Treatment includes lifestyle changes such as reducing your caloric intake, avoiding alcohol, and exercising regularly.