A high cholesterol diet is rich in that soft, waxy substance found among the fats in your body. Your body needs it because it's used to form cell membranes, some hormones, among other functions. But a high level of cholesterol in the blood is a major risk factor for coronary heart disease.

Cholesterol and other fats can't dissolve in the blood. They have to be transported to and from the cells by special carriers called lipoproteins. There are several kinds, but the ones to focus on are low-density lipoprotein (LDL) and high-density lipoprotein (HDL).

LDL is the major cholesterol carrier in the blood. If too much LDL cholesterol circulates in the blood, it can slowly build up in the walls of the arteries feeding the heart and brain. Together with other substances it can form plaque, a thick, hard deposit that can clog those arteries. This condition is known as atherosclerosis. A clot that forms near this plaque can block the blood flow to part of the heart muscle and cause a heart attack. If a clot blocks the blood flow to part of the brain, a stroke results.

Between one-third to one-fourth of blood cholesterol is carried by HDL. Medical experts think HDL tends to carry cholesterol away from the arteries and back to the liver, where it's passed from the body. Some experts believe HDL removes excess cholesterol from plaques and thus slows their growth. HDL cholesterol is known as "good" cholesterol because a high HDL level seems to protect against heart attack.

People get cholesterol in two ways. The body — mainly the liver — produces varying amounts, usually about 1,000 milligrams a day. Foods also can contain cholesterol. Foods from animals (e.g., egg yolks, meat, poultry, fish, and seafood and whole-milk dairy products) contain it. Foods from plants (fruits, vegetables, grains, nuts and seeds) don't contain cholesterol.

Typically the body makes all the cholesterol it needs, so people don't need to consume it. Saturated fatty acids are the main culprit in raising blood cholesterol, which increases your risk of heart disease. Trans fats also raise blood cholesterol. But dietary cholesterol also plays a part. The average American man consumes about 337 milligrams of cholesterol a day; the average woman, 217 milligrams.

Some of the excess dietary cholesterol is removed from the body through the liver. The American Heart Association recommends that you limit your average daily cholesterol intake to less than 300 milligrams. If you have heart disease, limit your daily intake to less than 200 milligrams. Still, everyone should remember that by keeping their dietary intake of saturated fats low, they can significantly lower their dietary cholesterol intake. Foods high in saturated fat generally contain substantial amounts of dietary cholesterol.

People with severe high blood cholesterol levels may need an even greater reduction. Since cholesterol is in all foods from animal sources, care must be taken to eat no more than six ounces of lean meat, fish and poultry per day and to use fat-free and low-fat dairy products. It’s also a good idea to substitute animal sources of protein with high-quality proteins from vegetable sources such as beans.

How High Is Your Cholesterol Level? By Miranda Hitti
Not enough adults are getting a simple test that could save their lives, the CDC says.

Only about two-thirds of the adult population routinely have their cholesterol level checked, according to a report in the CDC's Feb. 11 edition of the Morbidity and Mortality Weekly Report.

Heart disease and stroke are major causes of death in the U.S. Though there are many causes that contributed to these conditions, high cholesterol is one factor that can be treated.

Cholesterol is a fat-like substance found in the body and in certain foods such as meat, oils, and eggs. High cholesterol has been linked to atherosclerosis, or hardening of the arteries.

Routine screening can detect abnormally high levels of cholesterol, and people aged 20 and older should have their cholesterol checked at least every five years, according to the National Cholesterol Education Program.

Why Get Tested?

High cholesterol is defined as a total cholesterol level of 240 milligrams per deciliter (mg/dL) or higher. Total cholesterol of less than 200 mg/dL is considered desirable.

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Information on this site is provided for informational purposes and is not meant to substitute for the advice provided by your own physician or dietitian. Information and statements have not been evaluated by the Food and Drug Administration and are not intended to diagnose, treat, cure, or prevent any disease.

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