Adults who have not been screened should discuss cholesterol testing with a healthcare professional. People with elevated levels or other risk factors may need more frequent testing.
If you start or change cholesterol-lowering medication, follow-up testing is commonly used to assess the response to treatment and help guide further decisions.
Testing may be performed without fasting in many situations, although a clinician may request a fasting sample depending on the circumstances, particularly when triglyceride levels need clarification.
You do not need to wait for symptoms to appear before checking your cholesterol.
Who Is Most at Risk of Developing High Cholesterol?
High cholesterol can affect people of different ages and body types. Although lifestyle plays an important role, genetics and other medical factors also influence cholesterol levels.
Recognizing risk factors can help determine when testing and preventive care are especially important.
Family history and genetics
Familial hypercholesterolemia is an inherited condition that can cause very high LDL cholesterol from birth.
People with this condition have an increased risk of developing coronary artery disease at a younger age if the condition is not recognized and treated.
A family history of premature heart attacks or strokes may indicate inherited cardiovascular risk.
If close relatives have very high cholesterol or developed cardiovascular disease unusually early, discuss this history with a healthcare professional.
Diet and physical activity
A dietary pattern high in saturated fats can raise LDL cholesterol in many people. Saturated fat is found in foods such as fatty meats, butter, some full-fat dairy products, and certain tropical oils.
Replacing some saturated fats with unsaturated fats can help improve LDL levels.
Regular physical activity also supports cardiovascular health and can improve several metabolic risk factors.
However, a healthy lifestyle does not guarantee normal cholesterol levels, particularly in people with strong genetic predispositions.
Smoking
Smoking damages blood vessels and increases cardiovascular risk. It can also adversely affect HDL cholesterol.
Stopping smoking is one of the most effective ways to reduce cardiovascular risk, even when cholesterol levels are already being treated.
Diabetes and high blood pressure
Diabetes and high blood pressure can substantially increase the risk of cardiovascular disease.
People with diabetes may also experience abnormal triglyceride levels and other lipid abnormalities.
When these conditions occur alongside elevated LDL cholesterol, the combined risk can be greater than the risk associated with any single factor alone.
Age and other health conditions
Cholesterol levels and cardiovascular risk can change with age, hormonal changes, thyroid disorders, kidney disease, and certain medications.
A clinician can determine whether an underlying medical condition is contributing to abnormal lipid levels.
Importantly, younger adults should not assume they are protected from high cholesterol. Inherited conditions can cause substantial LDL elevation long before symptoms appear.
Practical Ways to Lower Cholesterol and Protect Your Heart
If testing reveals elevated cholesterol, the next step is to develop a treatment plan based on your individual cardiovascular risk.
Lifestyle changes are important for nearly everyone, while medication is recommended for many people depending on LDL levels, medical history, and estimated risk.
1. Choose more heart-healthy fats
Consider replacing foods rich in saturated fat with sources of unsaturated fat.
Examples include olive oil, nuts, seeds, avocados, and fish.
You do not necessarily need to eliminate every food containing fat. The type of fat and the overall dietary pattern matter more than simply avoiding all fats.
For people who eat meat, choosing leaner cuts and reducing processed meats can help improve the quality of the diet.
2. Increase soluble fiber
Soluble fiber can help reduce LDL cholesterol by limiting cholesterol absorption and influencing bile acid metabolism.
Good sources include oats, barley, beans, lentils, chickpeas, apples, citrus fruits, and certain vegetables.
Psyllium is another source of soluble fiber that may help lower LDL cholesterol when used appropriately with sufficient fluid.
Increase fiber gradually to reduce digestive discomfort, and discuss supplements with a healthcare professional if you have swallowing problems or other relevant conditions.
3. Eat more vegetables, fruit, and whole grains
A dietary pattern rich in vegetables, fruit, whole grains, legumes, nuts, and seeds can support cardiovascular health.
These foods provide fiber, vitamins, minerals, and other beneficial nutrients.
Replacing some highly processed foods with minimally processed alternatives may also improve overall dietary quality.
There is no need to rely on a single so-called superfood to lower cholesterol.
The overall pattern of eating matters most.
4. Exercise regularly
Regular physical activity helps improve cardiovascular fitness, supports blood pressure control, and can contribute to healthier triglyceride and HDL levels.
For many adults, a useful goal is at least 150 minutes of moderate-intensity aerobic activity per week, adjusted to individual ability and medical circumstances.
Brisk walking, cycling, swimming, and dancing are examples of activities that may fit this goal.
If you have chest discomfort, unexplained breathlessness, or significant leg pain, obtain medical advice before beginning a strenuous exercise program.
Exercise should be appropriate for your health status rather than forced through potentially dangerous symptoms.
5. Stop smoking
Smoking cessation reduces cardiovascular risk and improves overall vascular health.
If quitting is difficult, consider support from a healthcare professional, counseling, or evidence-based smoking cessation treatments.
Avoiding secondhand smoke is also beneficial.
6. Maintain a healthy weight when appropriate
For people who have excess body weight, gradual and sustainable weight loss may improve triglycerides, blood pressure, blood glucose, and other cardiovascular risk factors.
The most effective approach usually involves consistent dietary habits, physical activity, sufficient sleep, and realistic long-term goals.
Crash diets and extreme restrictions are unnecessary and may be difficult to maintain.
7. Limit alcohol
Alcohol can increase triglyceride levels, particularly when consumed in large quantities.
If you drink, consider reducing your intake, especially if your triglycerides are elevated or alcohol worsens your sleep.
Alcohol can also aggravate sleep apnea in some people.
Do not start drinking alcohol in an attempt to improve HDL cholesterol. Alcohol is not a recommended cholesterol-lowering treatment.
8. Take prescribed cholesterol medication as directed
Lifestyle changes are important, but some people need medication to achieve adequate LDL reduction.
Statins are widely used because they lower LDL cholesterol and reduce the risk of cardiovascular events in appropriately selected patients.
Other medications, including ezetimibe, PCSK9-targeting therapies, and bempedoic acid, may be considered depending on the individual's circumstances.
The best choice depends on factors such as LDL levels, existing cardiovascular disease, medication tolerance, other health conditions, and treatment goals.
Do not stop prescribed medication because you feel healthy or because your cholesterol has improved. In many cases, improvement occurs precisely because treatment is working.
If you experience possible side effects, discuss them with your clinician before making changes.
Can Better Sleep Help Protect Cardiovascular Health?
Sleep and cardiovascular health are closely connected.
Insufficient sleep, irregular sleep schedules, and untreated sleep disorders may contribute to problems involving blood pressure, glucose regulation, appetite, and overall metabolic health.
However, improving sleep does not directly guarantee lower LDL cholesterol.
The relationship between sleep and lipid levels is influenced by several factors, including genetics, body weight, diet, activity levels, underlying illnesses, and medication use.