LDL Cholesterol

What is LDL?

LDL or low-density lipoprotein is a type of lipoprotein in your blood.

Lipoproteins are particles made of lipids (fats) and proteins that carry fats through your bloodstream. Because of their structure, fats can’t move through your blood on their own. So, lipoproteins serve as vehicles that carry fats to various cells in your body.

LDL particles contain a large amount of cholesterol and a smaller amount of proteins. Too much LDL can put you at a higher risk of a stroke or heart disease. You may hear people call LDL “the bad cholesterol.”

What is LDL cholesterol?

Most people use “LDL” and “LDL cholesterol” to mean the same thing. LDL cholesterol itself isn’t bad. That’s because cholesterol performs important functions in your body. But too much LDL cholesterol can cause issues.

Why is LDL called “bad cholesterol?”

LDL cholesterol has a reputation for being the “bad cholesterol.” This is because excess LDL cholesterol contributes to plaque buildup (atherosclerosis) in your arteries. This plaque buildup may lead to:

• Coronary artery disease (CAD).
• Cerebrovascular disease.
• Peripheral artery disease (PAD).
• Aortic aneurysm.

This is why healthcare providers encourage you to have a healthy level of LDL cholesterol.

What is the LDL cholesterol normal range?

Most adults should keep their LDL cholesterol below 100 milligrams per deciliter (mg/dL). If you have a history of atherosclerosis, your LDL should be below 70 mg/dL. Some people need even stricter management if they have a strong history of coronary artery disease.

Healthcare providers use the following categories to describe your LDL cholesterol level:

What range of LDL is bad?

An LDL level above 100 mg/dL raises your risk of cardiovascular disease.

Healthcare providers check your cholesterol levels through a simple blood test called a lipid panel. When you receive your results, it’s important to talk to your provider about what your cholesterol numbers mean. These include both your LDL and your HDL cholesterol. HDL is the “good cholesterol” that helps remove extra cholesterol from your blood.

Generally, healthcare providers encourage higher HDL cholesterol levels (ideally above 60) and lower LDL cholesterol levels to reduce your cardiovascular disease risk. If your LDL is too high and your HDL is too low, your provider may recommend lifestyle changes and/or medications to get your cholesterol numbers into the healthy range.

What causes high LDL cholesterol?

Many factors — some of which you can’t change — can raise your LDL level. Factors that affect your LDL include:

• What you eat. Foods like fatty meats, full-fat dairy products, bakery and fast foods are harmful to your cholesterol levels. That’s because they contain high amounts of saturated fat and, in some cases, trans fat. These two types of fat raise your LDL cholesterol.
• Your body weight. Having overweight/obesity can raise your LDL cholesterol.
• Smoking or using tobacco products. Tobacco use (including smokeless tobacco and vaping) lowers your HDL level. You need a healthy amount of HDL cholesterol to get rid of extra LDL cholesterol from your blood. So, by reducing your HDL level, tobacco use leads to a raised LDL level.
• Medications. Some medicines you take to manage your blood pressure or HIV can make your LDL level go up.
• Medical issues. You can have a higher LDL level if you have diabetes, chronic kidney disease or HIV.
• Age. As you get older, your cholesterol levels naturally go up.
• Sex assigned at birth. People assigned female at birth (AFAB) typically have higher LDL levels after menopause.
• Your genes. If your close biological family members have high cholesterol, you may face a higher risk, too.

What foods cause high LDL cholesterol?

Foods that contain high amounts of saturated fat are the biggest culprits in raising your LDL cholesterol. Such foods include:

• Bakery items, like doughnuts, cookies and cake.
• Full-fat dairy products, like whole milk, cheese and butter.
• Red meats, like steak, ribs, pork chops and ground beef.
• Processed meats, like bacon, hot dogs and sausage.
• Fried foods, like french fries and fried chicken.

How can I lower my LDL cholesterol?

There’s a lot you can do to lower your LDL cholesterol. For many people, starting with lifestyle changes can make a big difference. Here are some changes you can make:

• Eat heart-healthy foods. Research shows the Mediterranean Diet can lower your risk for cardiovascular disease. This plan encourages you to eat healthy fats (from sources like olive oil and nuts) and avoid unhealthy fats (like saturated fat).
• Avoid tobacco use. If you smoke, vape or use any tobacco products, now is the time to quit. Ask your provider for resources to help.
• Get more exercise. Aim for 30 minutes of aerobic exercise per day at least five days a week. Start slow (just five or 10 minutes at a time) and gradually work your way up. Talk to your healthcare provider before beginning a new exercise plan or making changes to your old routine.
• Maintain a weight that’s healthy for you. Talk to your provider about what your ideal weight range should be.
• Find strategies to lower your stress. Being under stress for a long time may raise your LDL and reduce your HDL. Practices like yoga or deep breathing exercises may help you manage stress in your daily life.
• Discuss your medical regimen with your provider. Some of your medications may be contributing to higher LDL levels.

Your healthcare provider may also prescribe medication to lower your LDL cholesterol.

Foods that can lower your LDL cholesterol

Research shows that soluble fiber can lower your LDL cholesterol. This form of fiber (roughage) blocks the absorption of cholesterol in your body. You should aim to consume 10 to 25 grams (g) per day. Talk to your healthcare provider or a dietitian about the amount that’s right for you.

Adding beans and other veggies to meals can increase your soluble fiber intake. Talking to a dietitian can help you learn new and creative ways to incorporate these foods into your daily meals.

A note from Cleveland Clinic

You need some cholesterol for your body to function well. But too much LDL (“bad”) cholesterol can lead to plaque buildup in your arteries and cause complications down the road. That’s why it’s important to work with your healthcare provider to keep your LDL levels in the normal range.

For many people, lifestyle changes can make a big difference. But if you make changes and your LDL is still high, you might feel frustrated or confused. Try not to blame yourself or feel disheartened. Many factors that affect your LDL (like age and heredity) are out of your control. Talk to your provider about the changes you’re making. Ask your provider if medication is the right fit for you.