Cholesterol is a waxy, fat like substance that is found in all tissues. It is also found in animals. Plant foods do not contain cholesterol.
Cholesterol is found in all meats and dairy products.
After all the bad things that you've heard about cholesterol you will probably be surprised to find out that you need a certain amount of cholesterol. Cholesterol is essential for your cell membranes, nerves, and certain hormones. It also helps your liver to make bile acids which help to digest your food. The bad side is that if cholesterol builds up in your arteries it can cause plaque to form. A high level of HDL seems to protect against heart attack.