Eating foods rich in lycopene, like tomatoes, may help protect your blood vessels by mopping up harmful molecules that cause damage, which could keep plaque from building up in your arteries.
Evidence from Studies
Supporting (1)
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Lycopene and Its Antioxidant Role in the Prevention of Cardiovascular Diseases—A Critical Review
This study says lycopene, found in tomatoes, helps fight harmful molecules in the body that damage blood vessels and cause heart disease. It doesn’t prove it works perfectly in everyone, but most evidence shows it helps, especially in people under a lot of stress like smokers or diabetics.
Contradicting (1)
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Does lycopene offer human LDL any protection against myeloperoxidase activity?
The study found that even though lycopene is an antioxidant, it didn’t help protect a type of 'bad cholesterol' (LDL) from damage caused by inflammation in the blood — which is exactly what the claim says it should do.
Gold Standard Evidence Needed
According to GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this specific claim, ordered from strongest to weakest evidence.