What causes a high LDL cholesterol number?

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LDL, or low-density lipoprotein, is nicknamed "bad cholesterol" because of its tendency to build up the walls of blood vessels, causing blockages that contribute to poor blood flow and heart disease.

Identification

You're considered to have high LDL if your LDL is higher than 129 mg/dL, according to the National Cholesterol Education Program. LDL lower than 100 mg/dL is considered optimal.

Sources

Eating high cholesterol foods, such as meat, eggs and milk, and foods with trans fats and saturated fats, including baked goods and fried foods, increase LDL in the body. High LDL levels are also associated with obesity, smoking and lack of exercise.

Misconceptions

You can have LDL levels that are too high even if your total blood cholesterol falls within normal range if the ratio of LDL to good cholesterol in your blood is too high. A complete lipoprotein profile gives a more accurate representation of your LDL than a standard total cholesterol test.

Considerations

Genetics also play a role in LDL. A family history of high LDL levels increases your risk.

Expert Insight

The National Cholesterol Education Program recommends adding soluble fiber, such as oatmeal, whole grains, fruits and vegetables, to your diet to help lower LDL.

Source:

High Blood Cholesterol

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What causes a high LDL cholesterol number?

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