A diet rich in vegetables has cardiovascular benefits that have long been well documented. It’s been proposed that these health effects may be due, in part, to vegetables’ high nitrate content.
While nitrate is found in all vegetables, it’s especially abundant in beetroot and leafy greens. Dietary nitrate lowers blood pressure, thereby helping protect the heart. If you are looking for reliable beet juice, then you can also visit this site.
Recent studies have shown that dietary supplementation with nitrates in the form of beetroot juice not only lowers blood pressure, but also reduces oxygen demand during exercise and improves athletic performance.
Blood pressure and athletic performance benefits are likely mediated through the metabolic conversion of dietary nitrate (NO3) to biologically active nitrite (NO2) and then to nitric oxide. Nitric oxide has many functions in the body, including regulating blood flow, muscle contractility, glucose and calcium homeostasis, and mitochondrial respiration and biogenesis.
This continuing education activity provides a comprehensive overview of recent research on the health benefits of beetroot juice and assesses how nitrates lower blood pressure, lower oxygen costs during exercise, and improve athletic performance.
Dietary nitrates are rapidly absorbed by the stomach and small intestine. Approximately 25% of ingested nitrate reaches the enterospicular cycle, where it is reduced to nitrite on the surface of the tongue by bacterial nitrate reductase or symbiotic anaerobic bacteria.
This nitrite is absorbed in the acidic environment of the stomach and reduced to nitric oxide or absorbed through the digestive tract and returns to the blood stream as nitrite.