Measuring apoB might give a better picture of heart disease risk than LDL cholesterol because it counts the actual number of harmful particles in your blood, not just how much cholesterol they carry.

ApoB is a better blood test for predicting heart disease than standard cholesterol tests because it counts the actual particles that clog arteries, while cholesterol numbers can be misleading since each particle carries different amounts of cholesterol from person to person.

Measuring a protein called apoB in the blood is super accurate and consistent — more so than a common cholesterol test — so it could be a great option for regular check-ups.

Heart disease risk from clogged arteries is more about how many bad cholesterol particles are in your blood — counted by a protein called apoB — than about how much cholesterol is inside them.

The amount of cholesterol in each 'bad' particle in your blood can change because of a protein called CETP, which means counting cholesterol might not give the full picture of heart disease risk.

Doctors can figure out certain types of unhealthy blood fat levels—like type IIb or IV—by checking your apoB, cholesterol, and triglycerides, without needing fancy or rare tests.