The liver performs a multitude of functions including digesting food, processing nutrients, and eliminating toxic byproducts in the blood.
Nonalcoholic fatty liver disease (NAFLD) is one of more than two dozen diseases of the liver. NAFLD is a condition in which too much fat is stored in the liver not accumulated as a result of alcohol consumption. The related disease of alcoholic liver disease is caused by a buildup of fat due to heavy alcohol use. (published site)