Cholesterol is a fatty substance found in animal tissues.
While most animals bodies create their own cholesterol, it can be obtained by eating foods which have naturally high concentrations, such as eggs, butter, and fatty meats. There are generally higher concentrations in organs such as the brain and liver. Dorothy Hodgkin was awarded the Nobel Prize in chemistry for determining the structure of cholesterol and other important biological molecules. Stereographic image of the two independent molecules of Cholesterol that were present in the crystal. Stereographic pair representation of unit cell of a crystal of cholesterol.