Beets
Beet juice or powder is a common dietary supplement used by athletes to boost performance. This is due to the high concentration of nitrates in beets, which your body converts into nitric oxide. Blood vessels are relaxed by nitric oxide, which also enhances blood flow to muscle tissue.
Supplemental beet juice increases nitric oxide levels, blood flow, and oxygen supply to muscular tissue, all of which can improve performance. Beets not only just help athletes; they also help older adults with cardiovascular problems by increasing blood flow. In a trial with 12 older adults, those who drank 5 ounces (140 ml) of nitrate-rich beet juice daily had substantial decreases in their blood pressure, clotting time, and inflammation of the blood vessels compared to those who drank a placebo.