Despite the claims of some in the supplement industry, there exists ample scientific literature to substantiate the efficacy of Nitric Oxide products. The following was written in May 1996 in a document prepared for the Royal Society and Association of British Science Writers:
"Summary research papers continue to flood the scientific journals and insights into the biological activity and potential clinical uses of nitric oxide (NO): a gas controlling a seemingly limitless range of functions in the body. Each revelation adds to nitric oxide's already lengthy resume in controlling the circulation of the blood, regulating activities of the brain, lungs, liver, kidneys, stomach and other organs."
Since the above was written in 1996, Nitric Oxide containing products have continued to be touted by those in the medical profession, as well as by athletes looking to add muscle to their frames.