Lipoprotein (a) & Heart Disease: What You Should Know
Lipoprotein (a) is an inherited risk factor for heart disease. High levels may increase cholesterol buildup, affecting heart health. Learn ways to reduce risk.
- Published
- July 1, 2024
- Last updated
- September 22, 2026
- Read time
- 2 min read
What is Lipoprotein (a)?
Like LDL, Lipoprotein(a) (Lp[a]) is type of apoB cholesterol-carrying particle that is disease-causing. It differs in that it has an additional protein attached and has a higher propensity to cause blood vessel disease. Lp(a) levels are largely genetically determined (80-90%) and are elevated in about 20% of the population.
What does it assess?
Higher levels of Lp(a) have been strongly linked to cardiovascular disease and heart valve disease (aortic stenosis). As Lp(a) levels are predominantly genetically determined, there is no need at this point for most people to repeat the test more than once.
How do I optimize my Lipoprotein (a) levels?
Omega-3 fatty acids, particularly from fish oil, may have a modest effect in lowering Lp(a) levels in some individuals. While they are better known for their ability to reduce triglycerides and improve overall lipid profiles, certain studies suggest omega-3s can help reduce the risk associated with elevated Lp(a) by improving endothelial function and reducing inflammation. Since kidney disease can influence Lp(a) levels, maintaining kidney health may indirectly help manage Lp(a) levels. Adequate hydration, reducing excessive protein intake, and controlling blood sugar and blood pressure are critical steps in maintaining optimal kidney function. Additionally, addressing underlying conditions like diabetes, which can affect kidney health, can help lower the risk of complications from elevated Lp(a). At prescription strength, nicotinic acid (niacin) can lower Lp(a) and shift other lipids, but that is a pharmacologic dose rather than a nutritional supplement. Large randomized outcome trials tested exactly this approach. In AIM-HIGH, extended-release niacin at 1,500 to 2,000 mg per day added to statin therapy improved lipid levels but produced no reduction in cardiovascular events. In HPS2-THRIVE, 2 g of extended-release niacin (with laropiprant) added to a statin again showed no reduction in major vascular events, while increasing serious adverse effects such as new diabetes, infections, and bleeding. High-dose niacin can also cause flushing and liver toxicity. Because the lipid changes did not translate into fewer cardiovascular events, niacin is not a first-line way to manage elevated Lp(a), and any use belongs with a prescribing clinician.
What do high and low Lipoprotein (a) levels mean?
While not everybody that has elevated Lp(a) is at very high risk, in general, higher Lp(a) levels indicate an inherited risk of heart attack, stroke and heart valve disease. As it is primarily genetically determined, healthy lifestyle does not lower Lp(a) significantly. Low Lp(a) levels indicate that with respect to Lp(a)-mediated genetic risk, you are not at increased risk of cardiovascular disease. As there are many other mechanisms of inherited cardiovascular risk, this does not rule out all genetic predispositions.
For a full breakdown of Lp(a) test prices across labs, see the Lp(a) test cost comparison.
Related Lipoprotein (a) Resources
Heart health lab tests
Apolipoprotein B (Apo B) Blood Test
Estimate the number of atherogenic lipoprotein particles that can enter the artery wall, not just the cholesterol they carry.
The standard cholesterol workup for cardiovascular risk, and the baseline for tracking diet, exercise, or statin response.
C-Reactive Protein, High Sensitivity (hs-CRP) Blood Test
Add an inflammation-sensitive signal to a complete cardiovascular risk assessment.
Advanced Cholesterol Panel (Lipids, Apo B, Lipo A and Cholesterol Particle Size)
A fuller read on cardiovascular risk, counting the atherogenic particles and inherited risk that a standard lipid panel misses.
