Red Juice Lowers Blood Pressure Significantly in Hours.
Beetroot juice, which is a rich source of dietary nitrates, can help improve blood flow and significantly decrease blood pressure within three to six hours. Nitric oxide, a signalling molecule that plays a crucial role in vasodilation, widens and relaxes blood vessels, resulting in reduced peripheral resistance, improved blood flow, and ultimately, a decrease in blood pressure. However, individuals should consult their doctor before adding beetroot juice to their dietary regime if they already take medication that lowers their blood pressure.