Lycopene is a compound found in tomatoes and other red fruits. It decreases the accumulation of fatty deposits in arteries.
See the scientific wording
Lycopene reduces arterial plaque buildup in humans.
Correlational — new studies may shift this
Observational2 moderate-quality studies link this claim to the outcome, but causation is not established.
What the research says
2 studies reviewedSupporting (2)
Systematic Review With Meta-AnalysisMeta-analysis2026
People with higher lycopene levels in their blood tend to have less thickening in their artery walls, which is a sign of less plaque buildup, supporting the idea that lycopene may help reduce arterial plaque.
Cross-Sectional StudyHuman2000
The study found that men with more lycopene in their blood had thinner artery walls (less plaque), which supports the idea that lycopene helps reduce plaque buildup.
Contradicting (0)
No contradicting studies found yet
That doesn't mean it's settled — it just means no study has tested the opposite.
Quality-weighted scoring: we follow the GRADE framework — each study is rated High, Moderate, Low, or Very Low based on study design, methodology rigor, and risk of bias. A single high-quality RCT can outweigh several weaker observational studies.
Scores reflect study quality, not just count.
Lycopene neutralizes harmful molecules called free radicals in the blood. This prevents LDL cholesterol from becoming oxidized, which is a key step in forming plaque. Less oxidized LDL means the inner lining of arteries stays healthy and does not thicken with plaque.
Score breakdown, mechanism chain, raw evidence, ideal studies needed & 2 supporting studies
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Lycopene is a compound found in tomatoes and other red fruits. It decreases the accumulation of fatty deposits in arteries.
Mechanism
2 studiesLycopene works by neutralizing free radicals that damage LDL cholesterol. When LDL is damaged, it builds up in artery walls and forms plaque. By preventing this damage, lycopene keeps arteries flexible and free from thickening.
Lycopene neutralizes harmful molecules called free radicals in the blood. This prevents LDL cholesterol from becoming oxidized, which is a key step in forming plaque. Less oxidized LDL means the inner lining of arteries stays healthy and does not thicken with plaque.
Lycopene scavenges reactive oxygen species in the bloodstream, reducing oxidative stress.
Reduced oxidative stress prevents the oxidative modification of LDL cholesterol, a critical step in foam cell formation.
Lower levels of oxidized LDL improve endothelial function by increasing nitric oxide bioavailability and reducing proinflammatory cytokine expression.
Improved endothelial function and reduced inflammation lead to less vascular remodeling and decreased arterial thickening, measured as lower carotid intima-media thickness.
Evidence from Studies
Last searched 2mo ago
Supporting (2)
Community contributions welcome
Circulating Lycopene and β-Carotene Levels Are Inversely Associated with Carotid Intima–Media Thickness: A Systematic Review and Meta-Analysis
People with higher lycopene levels in their blood tend to have less thickening in their artery walls, which is a sign of less plaque buildup, supporting the idea that lycopene may help reduce arterial plaque.
Low Plasma Lycopene Concentration Is Associated With Increased Intima-Media Thickness of the Carotid Artery Wall
The study found that men with more lycopene in their blood had thinner artery walls (less plaque), which supports the idea that lycopene helps reduce plaque buildup.
Contradicting (0)
Community contributions welcome
Score Breakdown
No multi-axis breakdown available yet. The overall Pro / Against score above is the best signal.
- No clinical evidence is available; the score reflects mechanistic plausibility only.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
Systematic Review and Meta-Analysis of Randomized Controlled Trials on Lycopene and Atherosclerosis
A systematic review that includes double-blind, placebo-controlled RCTs of lycopene supplementation (any dose, duration ≥12 weeks) measuring arterial plaque via imaging (e.g., carotid intima-media thickness) in adult humans at risk for atherosclerosis.
Randomized Controlled Trial of Lycopene Supplementation on Carotid Intima-Media Thickness in Adults at Risk
Double-blind, placebo-controlled RCT with 200 adults (age 45-70) with subclinical atherosclerosis, randomized to lycopene (15 mg/day) or placebo for 2 years. Primary outcome: change in carotid artery plaque volume measured by ultrasound.
Prospective Cohort Study of Dietary Lycopene Intake and Arterial Plaque Progression
Prospective cohort following 5,000 adults (age 40-75) without baseline cardiovascular disease for 10 years, assessing dietary lycopene via food frequency questionnaires and measuring coronary artery calcium score and carotid plaque annually.
Case-Control Study of Serum Lycopene Levels and Coronary Artery Plaque Burden
100 cases with significant coronary artery plaque (stenosis >50%) and 100 controls with minimal plaque matched for age, sex, and BMI. Measure fasting serum lycopene and compare odds ratios.