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What Are the Functions of LDL?

LDL stands for low-density lipoprotein cholesterol. Lipoproteins transport cholesterol and other molecular structures through the bloodstream. While a certain amount of LDL is normal, too much is a serious health concern.

  1. Types

    • LDL is usually compared to high-density lipoprotein (HDL) cholesterol. LDL is know as "bad" cholesterol and HDL as "good" cholesterol.

    Significance

    • LDL is considered unhealthy because too much of it causes fatty deposits in blood, which restricts blood flow. These fatty deposits are referred to as plaques.

    Effects

    • Plaques that build up overtime with too much LDL cholesterol contribute to risk of heart attack and stroke. Risk factors increase for those with family history of cholesterol problems; people with high blood pressure, diabetes or who are overweight; and in relation to lifestyle choices such as diet and smoking.

    Expert Insight

    • According to the Mayo Clinic, you should have your cholesterol checked at least once every five years after the age of 20. Blood tests will indicate levels of both LDL and HDL cholesterol.

    Prevention/Solution

    • High-fat food contains more LDL cholesterol, so a balanced diet that limits saturated fat will help lower LDL levels, along with exercise and controlling weight. The American Heart Association recommends an average daily intake limit of 300 mg of cholesterol.

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