Cholesterol

Content provided by Healthwise

Cholesterol

Cholesterol is an important fatlike substance (lipid) that is made in the liver and is necessary for the body to function. It also is found in foods made from animal products (meat and dairy products).

Cells need cholesterol to function. However, excess cholesterol in the blood builds up in blood vessels and may lead to hardening of the arteries (atherosclerosis), heart disease, and stroke. People who have diabetes are at higher risk of developing atherosclerosis.

There are two main forms of cholesterol:

Low-density lipoprotein (LDL) is called “bad cholesterol.” Most efforts to lower cholesterol are aimed at reducing levels of LDL.
High-density lipoprotein (HDL) is called “good cholesterol.” It can help remove excess cholesterol from the blood vessels.

The cholesterol level can be checked with a blood test. If it is too high, lifestyle changes (such as diet changes and exercise) may help lower it. Some people may need medication to lower their cholesterol levels and reduce their risk of heart disease.

Credits

Print Email SHARE

Author	Jeannette Curtis
Author	Caroline Rea, RN, BS, MS
Editor	Kathleen M. Ariss, MS
Editor	Susan Van Houten, RN, BSN, MBA
Associate Editor	Tracy Landauer
Associate Editor	Pat Truman, MATC
Primary Medical Reviewer	Patrice Burgess, MD - Family Medicine
Primary Medical Reviewer	Adam Husney, MD - Family Medicine
Primary Medical Reviewer	Kathleen Romito, MD - Family Medicine
Last Updated	May 25, 2007

Print Email Twitter Facebook MySpace AIM More

Last updated:	May 25, 2007
Author:	Caroline Rea, RN, BS, MS
Reviewed By:	Kathleen Romito, MD - Family Medicine
Editors:	Susan Van Houten, RN, BSN, MBA, Pat Truman, MATC

This information is not intended to replace the advice of a doctor. By using AOL Body, you indicate that you have read, understood, and agreed to our Terms of Service, and AOL Body Advertising Policy. Read more about our content partners.