Which type of cholesterol is commonly referred to as “bad cholesterol”?

Low-density lipoproteins (LDL) are commonly referred to as "bad cholesterol" because they can lead to the buildup of plaque in the arteries, which increases the risk of cardiovascular diseases such as heart attacks and strokes. LDL carries cholesterol from the liver to the tissues of the body, and when levels are too high, it can result in excess cholesterol being deposited in the arterial wall.

In contrast, high-density lipoproteins (HDL) are known as "good cholesterol" because they help transport cholesterol away from the arteries and back to the liver for removal from the body. Very low-density lipoproteins (VLDL) primarily carry triglycerides in the bloodstream and are associated with increased risk of heart disease as well, but they are not typically labeled "bad cholesterol." Triglycerides, on the other hand, are a type of fat found in the blood that the body uses for energy but elevated levels can also contribute to heart disease risk. Understanding the roles of these different lipoproteins is essential for assessing cardiovascular health.