Several things, including having diabetes, can make your blood cholesterol level too high.Cholesterol is a substance that is made by the body and used for many important functions.

It is also found in some food derived from animals. When cholesterol is too high, the insides of large blood vessels become narrowed or clogged. This problem is called atherosclerosis (ATH-ur-oh-sklur-OH-siss).

Narrowed and clogged blood vessels make it harder for enough blood to get to all parts of your body. This condition can cause problems.