What is the relationship between blood cholesterol, dietary cholesterol and animal fats?

Cholesterol. Cholesterol is a type of fat that is necessary for a number of functions, it is part of cell membranes, sexual hormones and other necessary substances. It is present in the blood which transports it to various parts of the body, and it is also present in animals. Humans get into trouble by consuming too much cholesterol from animal fats or producing too much cholesterol from dietary fats.