Beet root extract delivers a concentrated, standardized dose of nitrates. The body converts those nitrates into nitric oxide, a molecule that supports blood flow and the function of blood vessels. This extract provides more nitrates per serving than whole beetroot.
People take it to support circulation and stamina. For exercise, many time the dose about 2 to 3 hours before a workout so nitrate levels can peak during activity.
Pay attention to two cautions. It can lower blood pressure and may amplify the effect of blood pressure medications. Beets naturally contain oxalates, so anyone with a history of kidney stones may want to avoid high doses.