Cholesterol Levels: What You Need to Know
What is Cholesterol Levels: What You Need to Know?
What is cholesterol? Cholesterol is a waxy, fat-like substance that's found in all the cells in your body. Your body needs some cholesterol to work properly. But if you have too much of it in your blood, it can stick to the walls of your arteries and narrow or even block them. This puts you at risk of coronary artery disease and other heart diseases. How do you measure cholesterol levels? A blood test called a lipoprotein or lipid panel can measure your cholesterol levels. Before the test, you'll need to fast (not eat or drink anything but water) for 9 to 12 hours. The test gives information about your: Total cholesterol. This is a measure of the total amount of cholesterol in your blood. It includes both low-density lipoprotein (LDL) cholesterol and high-density lipoprotein (HDL) cholesterol. LDL cholesterol. LDL is often called "bad" cholesterol because it is the main source of cholesterol buildup and blockage in the arteries. HDL cholesterol. HDL is often called "good" cholesterol because it helps remove cholesterol from your arteries. Non-HDL. This number is your total cholesterol minus your HDL. Your non-HDL includes LDL and other types of cholesterol such as VLDL (very-low-density lipoprotein). Triglycerides. This is another type of fat in your blood that can raise the risk of heart disease, especially in women. What do my cholesterol numbers mean? Cholesterol numbers are measured in milligrams per deciliter (mg/dL). Talk with your healthcare provider about what your cholesterol numbers should be. The numbers that are best for you may depend on your age, race, blood pressure, weight, family history, and more. However, here are some general guidelines showing the desirable levels (levels that are healthy for most people): Anyone age 19 or younger: Type of Cholesterol Healthy Level Total Cholesterol Less than 170 mg/dL Non-HDL Less than 120 mg/dL LDL Less than 110 mg/dL HDL More than 45 mg/dL Men age 20 or older: Type of Cholesterol Healthy Level Total Cholesterol Less than 200 mg/dL Non-HDL Less than 130 mg/dL LDL Less than 100 mg/dL HDL Greater than or equal to 60 mg/dL is best. Levels less than 40 mg/dL are considered low. Women age 20 or older: Type of Cholesterol Healthy Level Total Cholesterol Less than 200 mg/dL Non-HDL Less than 130 mg/dL LDL Less than 100 mg/dL HDL Greater than or equal to 60 mg/dL is best. Levels less than 50 mg/dL are considered low. Triglycerides are not a type of cholesterol, but they are also measured in this test. A normal triglyceride level is below 150 mg/dL. You might need treatment if you have triglyceride levels that are borderline high (150-199 mg/dL) or high (200 mg/dL or more). How often should I get a cholesterol test? When and how often you should get a cholesterol test depends on your age, risk factors, and family history. The general recommendations are: For people who are age 19 or younger: The first test should be between ages 9 to 11 Children should have the test again every 5 years Some children may have this test starting at age 2 if there is a family history of high cholesterol, heart attack, or stroke For people who are ages 20 to 65: Younger adults should have the test every 5 years Men ages 45 to 65 and women ages 55 to 65 should have it every 1 to 2 years For people older than 65:: They should be tested every year What affects my cholesterol levels? Many factors can affect your cholesterol levels. Some of them are things you can change: Diet. Saturated fat and cholesterol in the food you eat make your blood cholesterol level rise. Saturated fat is the main problem, but cholesterol in foods also matters. Reducing the amount of saturated fat in your diet helps lower your blood cholesterol level. Foods that have high levels of saturated fats include red meats, full-fat dairy products, chocolate, some baked goods, and deep-fried and processed foods. Weight. Being overweight or having obesity are risk factors for heart disease. They also tend to increase your cholesterol Lac
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Source: MedlinePlus, U.S. National Library of Medicine (NIH) — read the full NIH article.
Educational summary of an authoritative source — not medical advice. Please see your doctor for diagnosis, and seek urgent care for any severe or sudden symptoms.