Cholesterol is a waxy, yellow-white substance produced mostly in the liver. One of its main jobs is to help to produce the substances we need to digest the fats that we eat (the bile acids). It is also needed by every cell in our body, it helps to insulate our nerves, make vitamin D, and to build some hormones such as sex ones. 

Several studies have clearly demonstrated that cholesterol is one of the most important risk factor for cardiovascular disease (see educational area)

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