LDL cholesterol is the “bad” cholesterol. When too much of it circulates in the blood, it can clog arteries, increasing your risk of heart attack and stroke.

LDL cholesterol is produced naturally by the body, but many people inherit genes from their mother, father or even grandparents that cause them to make too much. Eating saturated fat, trans fats and dietary cholesterol also increases how much you have. If high blood cholesterol runs in your family, lifestyle modifications may not be enough to help lower your LDL blood cholesterol. Everyone is different, so work with your doctor to find a treatment plan that's best for you.

• Learn your cholesterol levels
• Options for managing your cholesterol levels

This content is reviewed regularly.  Last updated 04/07/08.