What is cholesterol?
Cholesterol is a waxy, fatlike substance that is naturally present in cell walls or membranes everywhere in the body. Your body uses cholesterol to produce many hormones, vitamin D, and the bile acids that help to digest fat.
High cholesterol levels in the blood can cause fatty deposits in blood vessels which cause narrowing and may lead to heart attack, stroke, or peripheral artery disease.
Medically Reviewed by a Doctor on 7/22/2014
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