LDL cholesterol, often called “bad cholesterol,” plays a key role in lipid metabolism and cardiovascular health. Moreover, LDL (Low-Density Lipoprotein) carries cholesterol to tissues, supporting cell membrane formation and hormone production. In addition, elevated LDL levels contribute to plaque buildup in arteries, increasing the risk of heart attacks and strokes. Furthermore, LDL cholesterol is a critical marker, helping healthcare providers assess cardiovascular risk and guide ... Low-density lipoprotein ( LDL ) is one of the five major groups of lipoprotein that transport all fat molecules around the body in extracellular water. [1] These groups, from least dense to most dense, are chylomicrons (aka ULDL by the overall density naming convention), very low-density lipoprotein (VLDL), intermediate-density lipoprotein (IDL), low-density lipoprotein ( LDL ) and high-density lipoprotein (HDL). LDL delivers fat molecules to cells. Lipoproteins transfer lipids (fats) around the ... LDL cholesterol is often called the “bad” cholesterol because it collects in the walls of your blood vessels, raising your chances of health problems like a heart attack or stroke. But... The human body needs cholesterol to perform specific functions, but high blood cholesterol levels increase the risk of coronary heart disease.