Vander Kraats The Nitric Factor 207gNitric oxide's most profound effect on the body is that of a power vasodilator. A vasodilator is a substance that increases the diameter of blood vessels and allows blood to flow unimpeded. All cells and organs in the body require good blood flow for nourishment, to remove toxins and for general health. Healthy NO levels may assist in some of the following: Enhance cardiovascular healthImprove blood pressureReduce chronic inflammationReduce oxidative