Understanding LDL Cholesterol

What is LDL?

LDL, or low density lipoprotein, is one component of your blood cholesterol.

LDL carries cholesterol through your bloodstream to help your body build cell walls and produce important hormones. But when there is too much LDL, it sticks to blood vessel walls and blocks the flow of blood. This can lead to heart attacks and strokes, which is why LDL cholesterol is called the "bad" cholesterol.

Why is measuring LDL cholesterol important?

Your LDL value will help your doctor determine if you are at risk of developing coronary heart disease. Your doctor will also look at your total cholesterol value, other lipoprotein values, and heart disease "risk factors."

A high LDL value means there is a greater chance that you will develop heart disease, the single largest cause of death in the U.S.

If your LDL is too high, your doctor will recommend lowering it through a combination of diet, exercise, and possibly medication.

How does my doctor determine my LDL value?

Your doctor can request a simple laboratory test (Direct LDL™) to be performed on your blood sample. The test tells your doctor how much "bad"cholesterol is in your blood.

What if I have questions about the results of my LDL test?

Your doctor is the best person to answer any questions regarding cholesterol testing and the management of elevated cholesterol.

What can I do to manage my LDL?

The best way to control LDL cholesterol - and reduce your risk of heart disease - is to eat a healthy diet and exercise regularly.

A healthy diet limits foods high in saturated fat and cholesterol. As a rule, less than 10 percent of your total calories should come from saturated fat and less that 30 percent from total fat. The amount of cholesterol in your diet should be below 300 milligrams a day.

Regular exercise has been shown to burn excess saturated fat and LDL, as well as lower blood pressure and the risk of diabetes.

By following your doctor's instructions, you can help control your LDL - and minimize your chances of developing heart disease.