A cholesterol level is an important part of understanding your heart and blood vessel health. Cholesterol is a waxy, fat-like substance your body needs to perform essential functions, but having too much cholesterol in the blood can contribute to plaque buildup in the arteries and increase the risk of heart disease and stroke.
One of the challenges with high cholesterol is that it usually causes no symptoms. You may feel completely healthy even if your cholesterol levels are higher than recommended. A blood test called a lipid panel or lipid profile is the main way to check your cholesterol levels.
Understanding your cholesterol numbers can help you and your primary care provider identify cardiovascular risk early and decide whether lifestyle changes, monitoring, or medication can be appropriate.
What Is Cholesterol
MedlinePlus explains that cholesterol is a waxy, fat-like substance found throughout the body. Your liver makes cholesterol, and your body needs it for important functions such as making hormones and helping digest fatty foods.
The problem is not cholesterol itself- it is having unhealthy amounts or combinations of cholesterol and other blood fats. Too much LDL cholesterol can contribute to plaque buildup inside arteries. Over time, this can narrow arteries and increase the risk of heart disease and stroke.
It is also useful to distinguish blood cholesterol from dietary cholesterol. Blood cholesterol is produced by your body and circulates in your bloodstream. Dietary cholesterol is found naturally in animal-based foods such as meat, poultry, seafood, eggs, and diary products. Diet, particularly the amount of saturated and trans fat you consume, can affect your cholesterol levels.
A cholesterol test generally provides information about:
- LDL cholesterol: Often called “bad” cholesterol because elevated levels can contribute to plaque buildup.
- HDL cholesterol: Often called “good” cholesterol because higher levels are generally associated with lower cardiovascular risk.
- Triglycerides: A type of fat in the blood that is also important for cardiovascular health.
- Total cholesterol: A summary measurement that includes cholesterol carried by different lipoproteins.
What Is a Normal Cholesterol Level
For adults, these are commonly used general reference levels:
Test | General Adult Level |
Total cholesterol | <200 mg/dL desirable |
LDL cholesterol | <100 mg/dL generally optimal |
HDL cholesterol | Higher is generally favorable |
Triglycerides | <150 mg/dL generally |
MedlinePlus lists total cholesterol below 200 mg/dL and LDL below 100 mg/dL as desirable levels for adults. It also identifies triglycerides below 150 mg/dL as normal/ HDL interpretation depends partly on sex; higher levels are generally considered favorable.
However, there is no single normal cholesterol level that applies to everyone. Your healthcare provider considers your cholesterol numbers alongside your age, blood pressure, smoking status, diabetes, family history, kidney disease, previous cardiovascular disease, and other risk factors.
That means two people with the same cholesterol level may have different treatment recommendations.
Understanding Your Cholesterol Test Results
LDL Cholesterol Level
LDL, or low-density lipoprotein, is commonly known as “bad cholesterol.” When LDL levels are elevated, cholesterol can contribute to plaque buildup in artery walls. Over time, this can narrow arteries and increase the risk of heart attack and stroke.
Because LDL plays an important role in atherosclerosis, it is often one of the most important numbers your provider considers when determining optimal levels for many adults, but your individual LDL goal may differ depending on your overall cardiovascular risk.
HDL Cholesterol Level
HDL, or high-density lipoprotein, is often called “good cholesterol.” HDL helps transport cholesterol away from the arteries, and higher HDL levels are generally associated with lower cardiovascular risk.
For adults, HDL levels of 60 mg/dL or higher are best, while lower levels may be considered less favorable.
It is important, however, not to look at HDL on its own. A high HDL cholesterol level does not necessarily cancel out the cardiovascular risk associated with high LDL cholesterol or other risk factors.
Triglyceride Level
Triglycerides are a type of fat found in the blood. Your body uses them for energy, but elevated triglyceride levels can increase cardiovascular risk, particularly when combined with high LDL or low HDL cholesterol.
A triglyceride level below 150 mg/dL is generally considered normal. Levels of 150-199 mg/dL are commonly considered borderline high, while 200 mg/dL or higher is high.
Very high triglyceride levels require medical attention because severely elevated triglycerides can increase the risk of acute pancreatitis.
Total Cholesterol
Total cholesterol represents the amount of cholesterol in your blood from different lipoproteins. It is useful as part of the lipid panel, but it does not tell the entire story.
For example, someone may have a total cholesterol below 200 mg/dL but still have an LDL level or other cardiovascular risk factor that deserves attention. Your provider should interpret your total cholesterol along with LDL, HDL, and triglycerides, taking into account your overall health.
What Is Considered a High Cholesterol Level
For total cholesterol, the commonly used adult ranges are:
<200 mg/dL: Desirable
200-239 mg/dL: Borderline high
≥240 mg/dL: High
The U.S. Centers for Disease Control and Prevention (CDC) notes that total cholesterol above 200 mg/dL may be considered high. However, treatment decisions should not be based on total cholesterol alone. LDL cholesterol and your overall cardiovascular risk are also important.
If your cholesterol numbers are outside the desirable range, don’t panic. One abnormal result does not automatically mean you need medication. Your primary care provider can review the complete lipid panel and determine what the numbers mean for you.
What Causes High Cholesterol Levels
Many different factors can affect cholesterol levels. Some can be changed, while others cannot.
Common contributors include:
- Genetics and family history: Cholesterol levels can run in families.
- Diet: Diets high in saturated and trans fats can contribute to unhealthy cholesterol levels.
- Physical inactivity: Not getting enough regular activity can increase cardiovascular risk.
- Excess weight: Being overweight or having obesity can contribute to higher cholesterol.
- Diabetes: Diabetes is associated with an increased risk of unhealthy cholesterol levels.
- Hypothyroidism: An underactive thyroid can affect cholesterol metabolism.
- Kidney disease: Certain kidney conditions can contribute to abnormal lipid levels.
- Certain medications: Some medications can affect cholesterol or triglycerides.
- Aging and metabolic factors: Cholesterol levels tend to change with age.
Family history and age are examples of factors you cannot control, while diet, physical activity, smoking, and weight are among the factors you may be able to modify.
Can You Have High Cholesterol Without Symptoms
Yes. High cholesterol symptoms are usually absent.
Most people with high cholesterol do not notice any warning signs. You can have an elevated LDL cholesterol level without chest pain, shortness of breath, fatigue, or noticeable symptoms.
This is why cholesterol screening is important. The CDC states that the only way to know whether you have high cholesterol is to have your cholesterol checked with a blood test.
Rather than waiting for symptoms, regular primary care visits can help identify cholesterol problems before they contribute to cardiovascular disease.
When Should You See a Doctor About Your Cholesterol Level
Consider scheduling a primary care appointment if you:
- Have an abnormal cholesterol test
- Have an LDL level of 190 mg/dL or higher
- Have diabetes
- Have high blood pressure
- Have a strong family history of high cholesterol
- Have relatives who experienced heart disease or stroke at a young age
- Are already taking cholesterol medication
- Are unsure whether you need cholesterol numbers, rather than focusing on a single result in isolation.
At Zenith Primary & Urgent Care, we provide comprehensive primary care to help patients understand and manage their cholesterol levels and overall cardiovascular health. Whether you’ve recently had an abnormal cholesterol test, have an LDL cholesterol level of 190 mg/dL or higher, have a family history of high cholesterol or early heart disease, or need ongoing cholesterol management, our primary care providers are here to help.
We proudly serve patients throughout Marlborough, Hudson, Southborough, Northborough, Westborough, Framingham, Berlin, Bolton, and surrounding MetroWest communities. We are accepting new primary care patients.
Schedule your appointment here to review your cholesterol numbers, assess your cardiovascular risk, and develop a personalized plan to improve your cholesterol levels and support long-term heart health.
Frequently Asked Questions About Cholesterol Levels
What is a normal cholesterol level?
For many adults, total cholesterol below 200 mg/dL and LDL cholesterol below 100 mg/dL are generally considered desirable or optimal. Triglycerides below 150 mg/dL are generally normal. Your individual targets may differ based on your overall cardiovascular risk.
Is a cholesterol level of 200 high?
A total cholesterol level of 200 mg/dL is near the threshold at which cholesterol may be considered borderline high. The CDC notes that total cholesterol above 200 mg/dL may be considered high, but your LDL, HDL, triglycerides, and other risk factors also matter.
What is a good LDL cholesterol level?
An LDL cholesterol level below 100 mg/dL is generally considered optimal for many adults. However, people with certain cardiovascular conditions or risk factors may have different treatment goals.
What should my cholesterol level be for my age?
Cholesterol recommendations vary by age and individual risk. Younger adults generally have lower desirable levels, while adults over 20 are commonly evaluated using adult reference ranges. Your provider can determine what cholesterol numbers are appropriate for you based on your complete health profile.
Can you have high cholesterol even if you eat healthy?
Yes. Genetics, age, family history, certain medical conditions, medications, and other factors can affect cholesterol even when you maintain a healthy diet.
