Which lipoprotein is commonly called 'bad' cholesterol?

• A. LDL
• B. HDL
• C. Chylomicrons
• D. VLDL

Answer: (A)

LDL is commonly called 'bad' cholesterol because it carries cholesterol from the liver to cells throughout the body, including the walls of arteries. When LDL levels are high, more cholesterol can deposit in the arterial walls, where it can become oxidized and trigger inflammation, leading to plaque formation (atherosclerosis). This plaque narrows and stiffens arteries, increasing the risk of heart attack and stroke.

In contrast, HDL is protective because it helps remove cholesterol from arteries and returns it to the liver for excretion. Chylomicrons and VLDL mainly transport triglycerides, with roles that are less directly tied to long-term arterial cholesterol deposition. So the label “bad” reflects LDL’s strong link to atherogenesis and cardiovascular risk. For CHWs, focus on interventions that lower LDL—healthy eating, regular physical activity, weight management, and adherence to prescribed therapies when indicated.