http://www.medscape.com/viewarticle/552655?src=mp
"Non-alcoholic fatty liver disease has been associated with metabolic
disorders, including central obesity, dyslipidema, hypertension and
hyperglycemia. Metabolic syndrome, obesity, and
insulin resistance are major
risk factors in the pathogenesis of non-alcoholic fatty liver disease.
Non-alcoholic fatty liver disease refers to a wide spectrum of liver damage,
ranging from simple steatosis to non-alcoholic steatohepatitis, advanced
fibrosis and cirrhosis."
It's worth reading all 27 pages