Cholesterol is a type of sterol necessary for the structure of every cell. The human body on it own produces 800 - 1000mg of cholesterol per day. Consuming cholesterol from external sources (animal products) is unnecessary and vegan diets are completely free of cholesterol. Chief sources of external cholesterol are eggs and organ meat. Consuming cholesterol increases the risk of chronic disease especially of the heart and blood vessels.
LDL Cholesterol is a cholesterol carrier responsible for depositing large amounts of cholesterol in the arterial walls. LDL is often called "bad cholesterol" because it is responsible for higher risks of cardiovascular disease. Cardiovascular disease is a disease of the heart and arteries characterized by hypertension and stroke.
HDL Cholesterol is a cholesterol carrier that removes cholesterol from the arteries and sends it off to the liver to be removed from the body. It is called "good cholesterol" because high levels decrease the risk of heart disease and visa-versa.