Cholesterol plays a vital role in the body by contributing to the formation of cell membranes, synthesizing hormones, and producing vitamins. It is essential for producing vitamin D and certain hormones, including corticosteroids and sex hormones. Cholesterol is transported in the bloodstream by lipoproteins, with low-density lipoprotein (LDL) often referred to as "bad" cholesterol due to its association with arterial blockages. Conversely, high-density lipoprotein (HDL) is deemed "good" cholesterol as it helps remove cholesterol from the bloodstream, supporting cardiovascular health.