Beetroot juice is naturally high in dietary nitrates. Nitrates are converted in the body to nitric oxide, which signals to smooth muscle surrounding blood vessels to relax, resulting in vasodilation and increased blood flow. By improving cardiovascular function, beetroot has now been shown to improve brain function, combat muscle fatigue, and improve stamina. Super beet formula also contains pomegranate juice and grape seed extract. Pomegranate and grape seed are both sources of antioxidants.