What are the differences between HDL and LDL cholesterol?

LDL cholesterol are considered the bad cholesterol that builds up on the walls of arteries. HDL cholesterol keeps the LDL cholesterol out of the blood and from building up in the arteries.

LDL is a larger molecule and has a lower proportion of proteins compared to HDL. LDL is produced from saturated fats and increases the risk of heart disease. While LDL transports cholesterol to the arteries, HDL removes cholesterol from the arteries.