A Lipid Profile (also called a lipid panel or cholesterol test) is a common blood test that measures the main types of fats (lipids) circulating in your bloodstream. It is used to estimate your risk of developing heart disease and stroke, and to help guide lifestyle changes and/or medication decisions.

A standard lipid profile typically includes:

Total cholesterol – an overall measure of cholesterol in your blood. Higher levels can be linked with a higher risk of plaque build-up in arteries, but interpretation depends on the other results as well.

LDL cholesterol (“bad cholesterol”) – a major contributor to fatty plaque in arteries (atherosclerosis). In general, lower LDL is better, especially if you have diabetes, prior heart disease, kidney disease, or other risk factors.

HDL cholesterol (“good cholesterol”) – helps remove cholesterol from the bloodstream. In general, higher HDL is better, although overall cardiovascular risk still depends on the full lipid profile and your other health risks.

Triglycerides – another type of blood fat influenced by diet (especially sugars/refined carbs and alcohol), weight, activity, genetics, and some medical conditions. High triglycerides can raise cardiovascular risk and, when very high, can increase the risk of pancreatitis.

Many reports also include calculated values such as:

Non-HDL cholesterol – total cholesterol minus HDL; represents all “atherogenic” (plaque-forming) cholesterol particles and is often a useful target when triglycerides are elevated.

VLDL cholesterol (estimated) and sometimes cholesterol ratios – additional ways clinicians assess risk in context.

In plain language, a lipid profile helps answer: “Are the levels of cholesterol and triglycerides in my blood putting me at higher risk for clogged arteries?” Your clinician interprets results alongside age, blood pressure, smoking status, diabetes, family history, and other factors to estimate your overall cardiovascular risk and decide whether lifestyle changes and/or cholesterol-lowering medicines (such as statins) may help.

A lipid profile is most often done as part of routine preventive care or when a clinician wants a clearer picture of your risk for heart and blood vessel disease. It may be ordered even if you feel well, because abnormal cholesterol and triglycerides often cause no symptoms until significant disease develops.

Your clinician may recommend this test if you:

Have cardiovascular risk factors, such as high blood pressure, diabetes/prediabetes, overweight/obesity, smoking/vaping, sedentary lifestyle, or a diet high in saturated fats, processed foods, or added sugars.

Have a personal or family history of early heart disease, stroke, high cholesterol, or familial hypercholesterolemia (a genetic condition that causes very high LDL cholesterol).

Have known heart or vascular disease (coronary artery disease, prior heart attack, angina, stroke/TIA, peripheral artery disease). Lipids are monitored to confirm that treatment goals are being met.

Are taking (or may need) cholesterol-lowering medication. A lipid panel helps decide if medication is indicated and checks how well treatment (statins, ezetimibe, PCSK9 inhibitors, etc.) is working.

Have conditions that can affect lipids, including hypothyroidism, chronic kidney disease, liver disease, polycystic ovary syndrome (PCOS), or metabolic syndrome.

Have persistently high triglycerides or symptoms/concerns that may be related, such as fatty liver disease or a history of pancreatitis.

Depending on the lab and your clinician’s preference, the test may be done fasting (no calories for ~9–12 hours) or non-fasting. Fasting is more likely to be requested when triglycerides have been high before, when pancreatitis risk is a concern, or when more precise triglyceride and calculated LDL values are needed.

• Atherosclerosis (plaque build-up in arteries)
• Coronary artery disease (CAD), angina, and heart attack (myocardial infarction)
• Stroke and transient ischemic attack (TIA)
• Peripheral artery disease (PAD)
• Hyperlipidemia / dyslipidemia (high or abnormal cholesterol and lipids)
• Familial hypercholesterolemia (genetic high LDL cholesterol)
• Hypertriglyceridemia (high triglycerides) and pancreatitis risk when very elevated
• Metabolic syndrome
• Type 2 diabetes and insulin resistance
• Nonalcoholic fatty liver disease (NAFLD/MASLD)
• Hypothyroidism (underactive thyroid) affecting cholesterol levels
• Chronic kidney disease (can worsen lipid abnormalities)

• Assessing and monitoring cardiovascular risk (heart disease and stroke prevention)
• Tracking progress with cholesterol and triglycerides after diet, exercise, and weight-loss changes
• Guiding decisions about starting or adjusting statins or other lipid-lowering therapy
• Monitoring lipid targets in people with diabetes, high blood pressure, or metabolic syndrome
• Supporting goals to improve overall metabolic health (insulin resistance, waist circumference, blood fats)
• Evaluating possible secondary causes of abnormal lipids (e.g., thyroid, liver, kidney-related contributors)
• Long-term preventive health screening and routine wellness checks, especially with family history of early heart disease