LDL (low-density lipoproteins) is the "bad" cholesterol . A poor diet, being overweight, smoking, and other factors can make LDL cholesterol high . Learn more about the difference between LDL and HDL cholesterol , the range of LDL numbers, the risks of high LDL levels, and how to lower LDL. Your Cholesterol Is Too High ! You’ve had your annual physical, including a “lipid panel” that measures lipoprotein levels in the blood, and your doctor tells you, “Your cholesterol is too high .” What does that really mean ? One number in your lipid profile will be your total cholesterol level, including both LDL and HDL. Click below to share! Nearly one in three adults has high LDL cholesterol —a silent contributor to arterial plaque and heart disease risk. In this guide, you’ll discover the healthy LDL cholesterol normal range, how optimal targets differ, and why understanding your lipid profile matters for cardiovascular protection.