Nitric Oxide is a gas formed in the body by the breakdown of L-Arginine to L-Citrulline through an enzyme group called Nitric Oxide Synthase (NOS). Although NO2 is used for many purposes, it’s ability to increase blood flow will be discussed in this article.
Increase recovery post workout
Increase resistance to muscular fatigue
Increase muscular work output
These three claims are largely based on the assumption that an increase in blood flow to muscle tissue will enable users to experience the claims that
There is absolutely no doubt that NO2
Vasodilation is the process of a relaxation of blood vessels, allowing them to carry more blood to and from working muscle tissue. Vasodilation (to high levels) is triggered by the onset of exercise as the need for oxygen and nutrients is heightened during this time. The process of vasodilation is highly influenced by nitric oxide.
High levels of nitric oxide aid in the conversion of an enzyme (GTP) into another (cGMP) which serves as an important messenger to, amongst others, the relaxation of smooth vascular muscle in order to create vasodilatory effects. Therefore, if levels of nitric oxide are inhibited vasodilation may not occur to the extent that allows maximal performance.
In essence, vasodilation occurs when high levels of nutrients need to be transferred into muscles for energy production. Vasodilation itself is highly influenced, and limited by the amount of NO2 that is available as it has been observed that a limited production of nitric oxide can lead to vasoconstriction.
It can be suggested therefore that if we can enable the body to produce ample amounts of nitric oxide, proper levels of vasodilation can occur, enabling the body to transport ample amounts of nutrients to working muscle for maximal power output.
As nitric oxide is produced by the conversion of l-arginine it can be supposed that
Insulin is an incredibly important hormone that allows nutrients, including glucose to be transported to muscle cells and has been shown to be a regulator in vasodilation and blood flow.
It is important to discuss insulin levels as it has been studied that the effects of insulin on vasodilation are dependent on insulin sensitivity i.e. how much insulin can be released when carbohydrates are ingested. These studies have concluded that nitric oxide production by insulin can decrease in people that are insulin ‘resistant’ rather than people that are sensitive to the effects of insulin release.
It can be extrapolated that a heightening in insulin levels can produce hyper vasodilation and in fact, this has been shown in resulting studies.
How Can Insulin Be Raised To Spark Vasodilation?
In fact the products mentioned earlier that are used in many nitric oxide products do increase insulin sensitivity in the body, therefore they do increase vasodilation but through heightened levels of insulin rather than a direct effect on l-arginine conversion.
Insulin has a linear relationship with the ingestion of carbohydrates; if large amounts of carbohydrates are eaten larger amounts of insulin are released. Therefore many powdered NO2
Powdered products are usually taken pre-workout only as supplementation of simple sugars is not recommended at any other time. Nitric oxide pills do not contain the sugars and will produce a slower effect on vasodilation by increasing your insulin sensitivity. Therefore carbohydrate ingestion is recommended around your workout to allow for the greatest chance of vasodilation trough insulin use.
Earlier the three most common claims of the