High-density lipoprotein, or HDL is known as good cholesterol.

HDL cholesterol is known as good cholesterol. Experts believe HDL acts as a scavenger, carrying LDL cholesterol away from the arteries and back to the liver. There it’s broken down and passed from the body. 

A healthy HDL cholesterol level may protect against heart attack and stroke. Studies show low levels of HDL cholesterol increase the risk of heart disease.