According to research on health and longevity, ApoB is a far more precise predictor of cardiovascular disease risk and overall mortality risk than standard LDL cholesterol alone. LAB TUBE TESTS 📊 What is ApoB? ApoB is the core protein inside every dangerous cholesterol particle in your body (LDL, VLDL, IDL, and Lp(a)). 1 ApoB molecule = 1 dangerous particle. Therefore, measuring your ApoB level allows you to know exactly how many harmful particles are circulating in your blo