How nitrate impacts your cardiovascular system - A Quick Primer - 1. Drink your shot Over 90% of the ingested nitrate is absorbed into your bloodstream via the intestine Nitrate (NO3) stays elevated in your bloodstream 6-8 hours 2. Bloodstream Absorption 25% of the nitrate in your bloodstream is absorbed and concentrated by your salivary glands 75% of the nitrate (NO3) is excreted by your kidneys 3. Nitrate-rich Saliva Bacteria on the tongue converts nitrate to nitrite It's the only way our bodies convert nitrate (NO3) to nitrite (NO2) 4. Conversion to Nitric Oxide Acid in the stomach converts nitrite to nitric oxide Nitric Oxide (NO) is the vasolidator that improves cardiovascular performance. Some of the nitrite bypasses the stomach, entering the bloodstream where it's converted to NO. 5. The Benefits of Beet It Sport Greater Endurance Enhanced Strength Improved Sprint Times Accelerated Muscle Recovery Lowered Blood Pressure The discovery of nitric oxide as a vasolidator was awarded the Nobel Prize in 1998.