HDL cholesterol is considered "good" cholesterol and helps remove excess cholesterol from the bloodstream, while LDL cholesterol is considered "bad" cholesterol and contributes to the build-up of plaque in the arteries.

HDL cholesterol is associated with an increased risk of atherosclerosis, while LDL cholesterol is protective against the development of cardiovascular disease

HDL cholesterol primarily carries cholesterol to the cells for energy production, while LDL cholesterol transports excess cholesterol to the liver for excretion

HDL cholesterol is synthesized by the liver and is essential for producing hormones, while LDL cholesterol is a byproduct of cellular metabolism