Most people are aware that their cholesterol levels play an important role in determining how heart-healthy they are, but there’s more to it than that. In this video, nutrition and fitness expert Janet Bond Brill, PhD, RDN, FAND, LDN, explains that while levels and ratios of HDL (“good”) cholesterol and LDL (“bad”) cholesterol are important, people who have a genetic predisposition to heart disease also need to pay attention to the size and weight of their LDL particles. Small, dense LDL particles are extremely dangerous and can lead to heart attacks. Fat and fluffy LDL and HDL particles are what you want. While heart disease is the number-one killer of Americans, it is largely preventable. Dr. Bond Brill recommends that everyone should see a preventive cardiologist at a young age…have their cholesterol levels, ratio and particle size checked…and manage their risk factors.