A total cholesterol level of 240 mg/dL or higher is considered high, while readings between 200 and 239 mg/dL fall into the borderline-high category. But total cholesterol is only part of the picture. Your lipid panel breaks down into several components, and each one has its own set of thresholds that paint a more complete picture of your cardiovascular risk.
Total Cholesterol Ranges
Total cholesterol is the simplest number on your lipid panel. It combines your LDL, HDL, and a portion of your triglycerides into a single figure. The standard ranges for adults are:
- Normal: Less than 200 mg/dL
- Borderline high: 200 to 239 mg/dL
- High: 240 mg/dL or above
These cutoffs apply to both men and women starting at age 20. A total cholesterol reading above 200 doesn’t automatically mean you need medication, but it does signal that your individual lipid components deserve a closer look. Two people with the same total cholesterol can have very different risk profiles depending on how that number breaks down.
LDL: The Number That Matters Most
LDL cholesterol is the type that deposits fatty buildup inside artery walls, gradually narrowing them and raising your risk of heart attack and stroke. This is the number most doctors focus on when deciding whether treatment is needed. For the general population, an LDL below 100 mg/dL is considered optimal. Between 100 and 129 is near optimal, 130 to 159 is borderline high, 160 to 189 is high, and anything at 190 or above is very high.
For people who already have heart disease or are at high cardiovascular risk, the targets are significantly tighter. European cardiology guidelines recommend getting LDL below 70 mg/dL for high-risk patients, with at least a 50% reduction from baseline levels. The most recent 2025 U.S. guidelines go even further for certain patients: those with coronary artery disease plus risk factors like diabetes may be candidates for more aggressive treatment if their LDL stays above 55 mg/dL.
Your personal LDL target depends on your overall risk profile, not just the number in isolation. Someone with no other risk factors and an LDL of 140 is in a very different situation than someone with the same LDL who also has diabetes, high blood pressure, and a family history of early heart disease.
HDL: When Higher Is Better
HDL cholesterol works in the opposite direction from LDL. It helps remove excess cholesterol from your bloodstream and carries it back to your liver for disposal. Higher HDL is protective, and low HDL is itself a risk factor for heart disease.
The thresholds differ by sex. For men, HDL below 40 mg/dL is considered low. For women, that cutoff is higher at 50 mg/dL, reflecting the fact that women typically carry more HDL than men. An HDL of 60 mg/dL or above is generally considered protective against cardiovascular disease.
One useful way to put your numbers in context is the total cholesterol to HDL ratio. You get this by dividing your total cholesterol by your HDL. A ratio above 4.5 is considered high risk for coronary heart disease. So if your total cholesterol is 220 but your HDL is 70, your ratio is about 3.1, which is favorable. The same total cholesterol with an HDL of 40 gives you a ratio of 5.5, which tells a much different story.
Triglyceride Levels
Triglycerides are a type of fat in your blood that your body uses for energy. They come from the calories you eat but don’t immediately burn, and they tend to spike after meals rich in sugar, refined carbohydrates, or alcohol. The ranges for adults are:
- Healthy: Below 150 mg/dL
- Borderline high: 150 to 199 mg/dL
- High: 200 to 499 mg/dL
- Very high: Above 500 mg/dL
Triglycerides above 500 mg/dL are a particular concern because at that level, the risk of pancreatitis (a painful and potentially dangerous inflammation of the pancreas) rises sharply. Unlike LDL, triglycerides respond quickly to lifestyle changes. Cutting back on alcohol, losing excess weight, and reducing sugar intake can drop triglyceride levels substantially within weeks.
Advanced Markers Worth Knowing
Standard lipid panels capture the basics, but some people have elevated cardiovascular risk that doesn’t show up in the usual numbers. Lipoprotein(a), often written as Lp(a), is a genetically determined particle that promotes blood clotting and artery inflammation. Unlike LDL, it doesn’t respond much to diet or exercise because your levels are largely set by your genes.
Lp(a) above 50 mg/dL (or 105 nmol/L) is the threshold where cardiovascular risk starts climbing. Levels above 90 mg/dL (190 nmol/L) put you in the top 5% of the population and carry serious risk for heart disease and stroke. Most people have never had their Lp(a) tested because it’s not part of a standard lipid panel. It only needs to be measured once in your lifetime since the level stays relatively stable, and it’s worth asking about if you have a family history of early heart disease that isn’t explained by the usual risk factors.
Children Have Different Thresholds
Cholesterol screening applies to kids too, and the cutoffs are lower than for adults. For children and adolescents, total cholesterol below 170 mg/dL is considered acceptable, 170 to 199 is borderline, and above 200 is high. LDL follows a similar pattern: below 110 is acceptable, 110 to 129 is borderline, and above 130 is high.
Pediatric screening is typically recommended between ages 9 and 11, with a second round between 17 and 21. Earlier testing may be appropriate for children with a family history of high cholesterol or early heart disease. Catching elevated levels in childhood matters because the process of artery damage begins much earlier than most people realize, and lifestyle habits established young tend to stick.
Fasting Before Your Test
For years, the standard advice was to fast for 9 to 12 hours before a cholesterol test. That’s changing. Multiple professional societies across the U.S., Europe, Canada, and the U.K. now endorse non-fasting lipid panels for most patients. The differences between fasting and non-fasting results are modest: triglycerides may read about 26 mg/dL higher without fasting, while total cholesterol and LDL may each come in about 8 mg/dL lower.
Non-fasting panels are actually a more realistic snapshot of your bloodstream since you spend most of the day in a fed state, not a fasting one. That said, a fasting test may still be useful if your triglycerides come back high on a non-fasting draw, since fasting gives a more precise triglyceride reading. If your doctor asks you to fast, it’s likely because they want a cleaner look at triglycerides specifically.
What Your Numbers Mean Together
No single cholesterol number tells the full story. A total cholesterol of 210 with a high HDL of 65, a low LDL of 110, and triglycerides under 100 is a very different profile than the same total cholesterol driven by an LDL of 150 and an HDL of 35. The combination matters, and so does everything else going on in your body: blood pressure, blood sugar, weight, smoking status, age, and family history all factor into how aggressively elevated cholesterol needs to be addressed.
If you’ve gotten a lipid panel back and your numbers fall into the borderline or high range, the next step is understanding your overall cardiovascular risk, not just reacting to one line on the lab report. Doctors often use risk calculators that weigh all these factors together to estimate your 10-year probability of a heart attack or stroke, and that composite risk is what actually drives treatment decisions.