Sleep & Recovery
Why am I waking up at 3 A.M. every night?
Stress, sleep timing, alcohol and sleep disorders can all play a role. Here are the clues worth noticing.
Read the article →
You may know your LDL, HDL, and triglyceride levels, but there is another cardiovascular risk marker that usually does not appear on a standard cholesterol panel: lipoprotein(a), or Lp(a). Unlike many familiar cholesterol measurements, your Lp(a) level is determined largely by genetics and tends to remain fairly stable throughout life.
That matters because elevated Lp(a) is associated with a higher risk of atherosclerotic cardiovascular disease, including heart attack and stroke, as well as aortic valve stenosis. Many people with high Lp(a) have no symptoms and otherwise normal-looking cholesterol results. Current U.S. cardiovascular guidance recommends measuring Lp(a) at least once in adulthood.
Here is what Lp(a) is, how testing works, what a high result may mean, and what you can do if your level is elevated.
Lipoprotein(a), or Lp(a), is an inherited cholesterol-carrying particle that can increase cardiovascular risk when its level is high. A standard lipid panel usually does not measure it. Current ACC/AHA guidance recommends that every adult have Lp(a) checked at least once in adulthood. Because levels are mostly genetic and relatively stable, one measurement is often enough unless your healthcare professional recommends repeat testing.
Get practical food ideas and simple everyday strategies designed to make healthier eating feel easier — delivered straight to your inbox.
Yes — send me the free PDF!
Enter your email below and get TLC Diet Secrets.
🔒 No spam. Unsubscribe anytime.
Lipoprotein(a) is pronounced “L-P-little-a.” It is a particle that carries cholesterol through the bloodstream. Its structure resembles an LDL particle, but Lp(a) also contains a protein called apolipoprotein(a), or apo(a).
This additional component helps explain why Lp(a) has attracted so much attention in cardiovascular medicine. Elevated Lp(a) is considered an independent cardiovascular risk factor, meaning it may add risk beyond familiar factors such as LDL cholesterol, smoking, high blood pressure, and diabetes.
Lp(a) may contribute to atherosclerosis, the buildup of plaque inside arteries. It is also associated with inflammation and processes involved in blood clotting. High Lp(a) has additionally been linked with calcific aortic valve disease and aortic stenosis, in which the valve between the heart and the aorta becomes narrowed.
LDL and Lp(a) are related, but they are not interchangeable. LDL cholesterol reflects cholesterol carried in LDL particles, while Lp(a) is a distinct particle with its own genetically determined apo(a) component.
| Feature | LDL Cholesterol | Lipoprotein(a) |
|---|---|---|
| Measured on routine lipid panel? | Usually yes | Usually no |
| Strongly influenced by genetics? | Partly | Yes, predominantly |
| Responsive to diet and lifestyle? | Often to some degree | Usually very little |
| Associated with atherosclerotic cardiovascular disease? | Yes | Yes |
| Usually needs repeated measurement? | Yes | Often only once |
A person can therefore have an acceptable LDL cholesterol level and still have elevated Lp(a). This is one reason Lp(a) testing can reveal cardiovascular risk that a routine lipid panel alone may not identify.
Your genes account for most of the variation in Lp(a) levels. As a result, eating differently, exercising more, or losing weight generally does not dramatically change the measurement itself. Levels also tend to remain relatively stable over a person's lifetime.
That does not make lifestyle irrelevant. If Lp(a) increases your baseline cardiovascular risk, managing the risk factors you can change becomes especially valuable.
Family history also matters. If one person is found to have significantly elevated Lp(a), testing close relatives may identify others who inherited the same tendency. The American Heart Association describes this family-based approach as cascade screening.
For most adults, yes—getting Lp(a) measured at least once is now recommended by major cardiovascular guidelines. The 2026 ACC/AHA guideline recommends at least one measurement in adulthood, aligning with international guidance that has increasingly supported once-in-a-lifetime testing.
Testing may be particularly informative if you have:
The American Heart Association specifically highlights family or personal history of premature heart disease, known familial high Lp(a), and familial hypercholesterolemia as situations in which testing is especially relevant.
Lp(a) is measured with a blood test ordered separately from the standard lipid panel. You can ask your primary care clinician, cardiologist, or other qualified healthcare professional whether it can be added to your cholesterol testing.
Labs commonly report Lp(a) in either nanomoles per liter (nmol/L) or milligrams per deciliter (mg/dL). These measure different characteristics of the Lp(a) particle, so the values should not be converted using a simple universal ratio.
For most people, Lp(a) does not need to be checked repeatedly because genetically determined levels usually remain fairly stable. Certain medical conditions and life stages can affect levels, however, so your healthcare professional may recommend another measurement when clinically appropriate.
An Lp(a) level of 125 nmol/L or 50 mg/dL or higher is widely used as a threshold indicating increased cardiovascular risk. The 2026 ACC/AHA guidance uses these values when identifying elevated Lp(a), while European recommendations similarly consider levels above 50 mg/dL clinically significant.
However, Lp(a) risk is better viewed as a continuum than as simply “normal” versus “abnormal.” A result slightly below a threshold does not guarantee zero Lp(a)-related risk, and a high value does not mean a heart attack or stroke is inevitable.
Your result should be interpreted alongside other factors, including:
The number is therefore most useful as one part of a complete cardiovascular risk assessment—not as a prediction of what will happen to you.
A high Lp(a) result means you have an inherited cardiovascular risk factor that deserves to be considered alongside the rest of your health profile. Elevated Lp(a) has been associated with heart attack, stroke, peripheral artery disease, and aortic stenosis.
Risk also rises with higher concentrations. The American Heart Association notes that 125 nmol/L or 50 mg/dL and above is associated with greater heart attack and stroke risk, while substantially higher levels are associated with progressively greater long-term risk.
Still, Lp(a) is not destiny. Someone with elevated Lp(a) and otherwise well-managed cardiovascular risk factors may have a very different overall risk profile from someone with the same Lp(a) level plus smoking, uncontrolled hypertension, diabetes, and high LDL cholesterol.
Diet, exercise, and weight loss generally do not substantially lower genetically elevated Lp(a). This is one of the major differences between Lp(a) and many other cardiovascular risk factors.
That does not mean healthy habits are ineffective. They can improve several other parts of cardiovascular health even when your Lp(a) number stays essentially unchanged.
If your Lp(a) is high, useful priorities may include:
Your individual targets may need to be more aggressive when several cardiovascular risk factors occur together, so treatment decisions are best made with a healthcare professional.
As of August 2026, there is no medication approved specifically for routine treatment of elevated Lp(a). Some existing therapies, particularly PCSK9 inhibitors, can lower Lp(a) to some degree while also lowering LDL cholesterol, but they are not approved solely as dedicated Lp(a)-lowering treatments.
Lipoprotein apheresis can remove Lp(a) from the bloodstream in selected high-risk patients, but it is an intensive procedure reserved for limited clinical situations rather than routine treatment.
Several drugs designed specifically to reduce Lp(a) production are being studied, including RNA-targeting therapies and other approaches. Early trials have produced large reductions in Lp(a), but lowering a laboratory number is not enough by itself. Large outcome trials must establish whether these treatments safely reduce heart attacks, strokes, and other cardiovascular events before their role in routine care can be determined.
A high result is best used as a reason to improve your overall risk assessment—not as a reason to panic.
No. Lp(a) resembles an LDL particle but contains an additional protein called apolipoprotein(a). Both can contribute to cardiovascular risk, but they are measured separately. A person can have an acceptable LDL cholesterol result while still having a high Lp(a), which is why a standard cholesterol test cannot rule out elevated Lp(a).
Lp(a) requires a separate laboratory measurement and historically has not been part of routine lipid screening. That is changing as evidence and guidelines increasingly recognize its value for cardiovascular risk assessment. The standard lipid panel generally reports total cholesterol, LDL cholesterol, HDL cholesterol, and triglycerides, so you usually need to specifically request or be prescribed an Lp(a) test.
For most adults, one measurement is sufficient because Lp(a) is primarily genetically determined and tends to remain stable. Current ACC/AHA guidance recommends measurement at least once in adulthood. Repeat testing may be appropriate in selected circumstances, such as when a condition that can alter Lp(a) is present or when a clinician believes another measurement would change management.
No. High Lp(a) increases cardiovascular risk; it does not predict with certainty that you will have a heart attack. Your actual risk depends on many factors, including age, blood pressure, LDL cholesterol, diabetes, tobacco exposure, family history, and whether you already have cardiovascular disease. Lp(a) is best viewed as one important piece of a larger risk profile.
Yes. Lp(a) and the measurements on a standard cholesterol panel are not the same thing. You can have an otherwise reassuring lipid panel while carrying a genetically elevated Lp(a) concentration. Because elevated Lp(a) commonly produces no symptoms, a specific blood test is the only reliable way to know your level.
Yes. Lp(a) levels are strongly influenced by inherited genetics. If a close relative has substantially elevated Lp(a), your own likelihood of having an elevated level is higher. If testing identifies high Lp(a), healthcare professionals may recommend cascade screening of close family members so inherited risk can be identified earlier.
Exercise usually does not substantially reduce the Lp(a) concentration itself. However, regular physical activity remains valuable because it can improve blood pressure, insulin sensitivity, fitness, body composition, and other aspects of cardiovascular health. If Lp(a) is genetically elevated, the goal is not simply to change that one number but to reduce overall cardiovascular risk wherever possible.
An isolated Lp(a) measurement generally does not require special fasting preparation. However, your clinician may order it together with other blood tests that have their own instructions. Follow the directions provided by your healthcare professional or laboratory.
Lp(a) is usually reported in nmol/L or mg/dL. These units measure different aspects of Lp(a), and because particle size varies among people, there is no perfectly accurate universal conversion factor. Interpret the result using the units supplied by your laboratory.
Testing may be appropriate because elevated Lp(a) is inherited. The best timing depends on the child's family history and overall clinical situation. Discuss family screening with a pediatrician or other qualified healthcare professional rather than interpreting an adult threshold on your own.
Usually not. Elevated Lp(a) itself generally causes no noticeable symptoms, which is one reason many people do not know they have it. Testing is used to identify cardiovascular risk rather than to explain a particular symptom.
Usually no. A lower Lp(a) concentration is generally not considered something that needs to be raised or treated. You should still manage other cardiovascular risk factors because a favorable Lp(a) result does not eliminate the effects of high LDL cholesterol, hypertension, diabetes, smoking, or other risks.
No supplement has been established as a routine treatment that reliably eliminates the cardiovascular risk associated with genetically elevated Lp(a). Be cautious with products marketed specifically to “normalize” Lp(a). If your result is high, focus on an evidence-based cardiovascular risk plan developed with a qualified healthcare professional.
Get practical food ideas and simple everyday strategies designed to make healthier eating feel easier — delivered straight to your inbox.
Yes — send me the free PDF!
Enter your email below and get TLC Diet Secrets.
🔒 No spam. Unsubscribe anytime.
Lipoprotein(a) is an inherited cholesterol-carrying particle that can increase the risk of heart attack, stroke, peripheral artery disease, and aortic stenosis when elevated. Because high Lp(a) usually causes no symptoms and is not included on a standard cholesterol panel, you cannot tell whether your level is high without testing.
Current ACC/AHA guidance recommends that every adult have Lp(a) measured at least once. For most people, a single test provides useful lifelong information because the level is largely genetic and relatively stable.
If your Lp(a) is elevated, the result is not a prediction that cardiovascular disease is inevitable. Instead, it can help you and your healthcare professional identify hidden inherited risk, decide how aggressively to manage LDL cholesterol and other modifiable factors, and consider whether close family members should also be tested.
Get practical food ideas and simple everyday strategies designed to make healthier eating feel easier — delivered straight to your inbox.
Yes — send me the free PDF!
Enter your email below and get TLC Diet Secrets.
? No spam. Unsubscribe anytime.
