Persian White Onion

The flavonoids in white onions can support heart health. They are also rich in sulfur, which may help prevent heart disease. Quercetin in onions has the potential to fight cardiovascular diseases as well. With its antioxidant and anti-inflammatory properties, quercetin contributes to heart health. Onions can also improve cholesterol levels, which ultimately benefits the heart. According to a report by Cambridge University Press, onion flavonoids help lower bad cholesterol levels in obese individuals. White onions also prevent platelets from sticking together, which can lead to clot formation and, eventually, heart attacks. They may also help prevent high blood pressure, thereby reducing risks to the heart.