Eat More Beets
If you're going to add one vegetable to your diet right now, Clark says to make it beets. "Eat beets and drink the juice," says Clark. "Rich in nitric oxide, a potent vasodilator, beets can be added to salads, roasted (if fresh and raw), or blended into smoothies."
Beets are getting a lot of attention these days: Research has found that drinking beet juice before a high-intensity workout can improve athletic performance and lower your blood pressure thanks to its nitrates, which promote blood flow and oxygen to the muscles. Another study found that beet juice gave athletes sharper brains (a skill that would help make quick choices on the court) by feeding the brain with oxygen.