Cholesterol travels through the blood attached to a protein -- this cholesterol-protein package is called a lipoprotein. Lipoproteins are classified as high density, low density, or very low density, depending on how much protein there is in relation to fat:
* Low density lipoproteins (LDL): LDL, also called "bad" cholesterol, can cause build-up of plaque on the walls of arteries. The more LDL there is in the blood, the greater the risk of heart disease.
* High density lipoproteins (HDL): HDL, also called "good" cholesterol, helps the body get rid of bad cholesterol in the blood. The higher the level of HDL cholesterol, the better. If your levels of HDL are low, your risk of heart disease increases.
* Very low density lipoproteins (VLDL): VLDL is similar to LDL cholesterol in that it contains mostly fat and not much protein.
* Triglycerides: Triglycerides are another type of fat that is carried in the blood by very low density lipoproteins. Excess calories, alcohol, or sugar in the body are converted into triglycerides and stored in fat cells throughout the body.
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Read the Original Article: The Basics of Cholesterol