Definition: LDL cholesterol is name given to the cholesterol in the bloodstream that is carried by "low density lipoprotein."
LDL cholesterol has been called "bad cholesterol" because elevated levels of LDL cholesterol have been strongly associated with an increased risk of heart attack and stroke. It appears that when LDL cholesterol levels are too high, the LDL lipoprotein tends to stick the lining of the blood vessels, which helps to stimulate atherosclerosis. So, an elevated LDL cholesterol level is a major risk factor for heart disease and stroke.
In general, optimal LDL levels are less than 100 mg/dL. Near optimal levels are between 100 and 129. Levels between 130 and 159 are considered "borderline;" levels between 160 and 189 are considered "high;" and levels of 190 and above are considered "very high."
- Read more about cholesterol and triglycerides.
- Read more about when it is a good idea to treat LDL cholesterol levels.
