Citrus Fruits

Citrus fruits are a great option for increasing blood oxygen levels because they are full of vitamins, iron, antioxidants, and flavonoids. Oranges, lemons, and grapefruit are some of the citrus fruits that are packed with antioxidants, including flavonoids.

Citrus fruits high in flavonoids may reduce inflammation in the body, which can lower blood pressure and arterial stiffness while enhancing blood flow and nitric oxide production. In a trial with 31 people, those who consumed 17 ounces (500 ml) of blood orange juice every day for a week showed significantly improved artery dilation and substantial reductions in markers of inflammation like IL-6 and CRP compared to a control group. Regular eating of citrus fruits like grapefruit and lemon has also been linked to lower blood pressure and a lower risk of stroke.