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ApoB (apolipoprotein B)
ApoB is a protein on cholesterol particles such as LDL. It shows how many “bad” particles are circulating in your blood.
ApoB (apolipoprotein B) is a protein found on the outside of certain fat particles in your blood. These particles transport cholesterol and triglycerides. This mainly concerns LDL, but also VLDL, IDL, and Lp(a).
Each of these particles contains one ApoB protein. Therefore, the ApoB value indicates the number of these cholesterol particles in your blood:
more ApoB = more particles.
These ApoB particles can penetrate the walls of blood vessels and deposit cholesterol there. This can lead to the formation of fatty deposits (atherosclerosis). The more ApoB particles you have, the greater the risk of cardiovascular problems, such as heart attack, stroke, or poor circulation (e.g., in the legs).
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