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Cholesterol is a waxy, fat-like substance that is found in all cells of the body. Your body needs some cholesterol to make hormones, vitamin D, and substances that help you digest foods. There are two types:
- LDL cholesterol - the "bad" cholesterol that can build up in your arteries and increase your risk for heart disease and stroke.
- HDL cholesterol - the "good" cholesterol that helps remove LDL cholesterol from your arteries.