Does bad cholesterol hurt your heart if there's no plaque?
Low-Density Lipoprotein Cholesterol Is Predominantly Associated With Atherosclerotic Cardiovascular Disease Events in Patients With Evidence of Coronary Atherosclerosis: The Western Denmark Heart Registry
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
LDL-C showed no association with heart disease risk in people with zero coronary plaque (CAC=0), despite decades of messaging about 'bad cholesterol' being universally dangerous.
This contradicts the common belief that high LDL is inherently risky for everyone, regardless of current artery health—suggesting risk is context-dependent.
Practical Takeaways
Consider a coronary artery calcium (CAC) scan if you're middle-aged with heart symptoms or risk factors, to see if plaque is present before deciding on cholesterol-lowering treatment.
Not medical advice. For informational purposes only. Always consult a healthcare professional. Terms
Surprising Findings
LDL-C showed no association with heart disease risk in people with zero coronary plaque (CAC=0), despite decades of messaging about 'bad cholesterol' being universally dangerous.
This contradicts the common belief that high LDL is inherently risky for everyone, regardless of current artery health—suggesting risk is context-dependent.
Practical Takeaways
Consider a coronary artery calcium (CAC) scan if you're middle-aged with heart symptoms or risk factors, to see if plaque is present before deciding on cholesterol-lowering treatment.
Publication
Journal
Circulation
Year
2023
Authors
M. Mortensen, O. Dzaye, Hans Erik Bøtker, J. Møller Jensen, M. Maeng, Jacob Fog Bentzen, H. Kanstrup, H. Toft Sørensen, J. Leipsic, R. Blankstein, K. Nasir, M. Blaha, B. Linde Nørgaard
Related Content
Claims (6)
If you're a middle-aged person with symptoms, having higher 'bad' cholesterol (LDL) means you're more likely to have heart problems over the next four years — but only if scans show you already have plaque in your heart arteries.
If you're a middle-aged person with signs of heart disease and calcium in your arteries, having very high 'bad' cholesterol makes your risk of heart problems more than double. But if your arteries are clean, even sky-high cholesterol doesn’t seem to increase your risk.
If a middle-aged person has heart symptoms but no calcium buildup in their arteries, things like diabetes, smoking, and low 'good' cholesterol are linked to future heart problems — but their 'bad' cholesterol level doesn’t seem to matter, which might mean other non-plaque-related issues are causing the heart trouble.
If you have calcium buildup in your heart's arteries, the link between your 'bad' cholesterol and heart problems changes — it’s stronger or weaker depending on that calcium.
If a middle-aged person has higher 'bad' cholesterol, they're more likely to have buildup in their heart arteries — every 38.7-point rise means about a 17% higher chance of early heart disease signs, even if they already have symptoms.