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Cholesterol does not need to be ldl eaten, however, because the liver and other tissues can manufacture cholesterol from saturated fats. But too many saturated fats result in excessively high blood levels of cholesterol that can end up being deposited in atherosclerotic plaques on blood vessels, leading to cardiovascular disease. High blood cholesterol also depresses the immune system ldl and thereby increases the incidence of cancer [*4]. Excessive blood cholesterol is ldl more often caused by eating too many saturated fats than by eating cholesterol itself. The term blood cholesterol is actually a reference to HDL (High-Density Lipoprotein), LDL (Low-Density Lipoprotein) and VLDL (Very Low-Density Lipoprotein). "Lipo" means "lipid", a general term that refers to all biological fats and oils. HDL has been called "good cholesterol" because it can pick-up excess fats and carry them back to the liver. LDL (and especially VLDL) has been called "bad cholesterol" because it can become so overloaded with fats that the fats are dropped on blood vessel walls rather than carried to the cells where they are needed.
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