LDL (bad) 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 foods with saturated fat or trans fats also increases the amount of LDL cholesterol in your blood. If high blood cholesterol runs in your family, lifestyle modifications may not be enough to help lower your LDL blood cholesterol.
View an animation of cholesterol.
This content was last reviewed on 04/21/2014.