What does high ApoB mean?

High ApoB can indicate decreased clearance of cholesterol from the blood and is often coupled with high LDL cholesterol levels. While you need LDL cholesterol to carry out important functions like hormone production, elevated ApoB and LDL levels can eventually lead to plaque buildup and the narrowing of arteries, a risk factor for heart disease. In fact, ApoB is thought to be the best blood biomarker to assess heart disease risk.