What form is known as LDL harmful because it contributes to plaque buildup in the arteries?

Low-density lipoprotein (LDL), commonly known as "bad cholesterol," is associated with plaque buildup in the arteries, a condition called atherosclerosis. LDL particles carry cholesterol from the liver to cells throughout the body. However, when LDL levels are high, excess cholesterol can accumulate in the walls of arteries, forming plaques. Over time, these plaques can narrow the arteries, restrict blood flow, and increase the risk of heart disease, stroke, and peripheral artery disease.

In contrast, high-density lipoprotein (HDL), often referred to as "good cholesterol," helps remove excess cholesterol from the arteries and transports it back to the liver for elimination. Maintaining healthy levels of HDL cholesterol can help protect against the negative effects of LDL cholesterol.