Obesity’s associated problems include diabetes and fatty liver disease, and University of Iowa researchers looked to food for a solution. They found that a natural substance found in apple peel, ursolic acid, partially protects mice from obesity, pre-diabetes and fatty liver disease.
"Keep Your Liver Lean with Apple Skin." http://www.liversupport.com/keep-your-liver-lean-with-apple-skin/. Retrieved on November 2, 2016.