Citrus fruits such as grapefruit, oranges, and lemons are sources of vitamin C, a nutrient noted for its antioxidant and anti-inflammatory properties. Researchers at Johns Hopkins discovered that high doses of vitamin C may modestly lower blood pressure by acting as a mild diuretic. A 2019 article in Frontiers in Immunology reports that increased vitamin C consumption correlates to lower risk of cardiovascular disease. Citrus fruits contain more than 60 types of polyphenols along with trace minerals that strengthen and protect the cardiovascular system.

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