What is the main characteristic of LDL cholesterol?

The main characteristic of LDL cholesterol is its association with higher levels of plaque buildup in the arteries. LDL, or low-density lipoprotein, is often referred to as "bad cholesterol" because it contributes to the formation of atherosclerotic plaques, which can narrow and harden arteries. This process is known as atherosclerosis and is a significant risk factor for cardiovascular diseases, including heart attack and stroke.

When LDL levels are elevated, there is a higher likelihood that cholesterol will be deposited in the arterial walls, leading to plaque formation. This is detrimental to vascular health, as it impairs blood flow and can result in serious health complications. Thus, understanding the role of LDL cholesterol in plaque buildup underscores its negative impact on cardiovascular health and the importance of monitoring and managing cholesterol levels to prevent heart diseases.

In contrast, other characteristics described in the choices are not aligned with LDL's role in the body, such as labeling it as good cholesterol, associating it with carrying mostly triglycerides, or claiming it reduces the risk of heart disease, which are attributes more closely related to HDL (high-density lipoprotein) cholesterol and other favorable lipid profiles.