The best nitric oxide supplement can help you in several ways. Firstly, it can help to increase the blood flow around your body. This means that more oxygen and energy will get to your muscles giving you a sense of having a boost in energy. Secondly, it will increase the circulation of the blood and slightly thin the blood vessels so the blood can flow through easier.
There are lots of nitric oxide supplements on the market. Most of them contain the same items but some are more potent and stronger than others. These are the ones that will produce the best results, so always try and compare the labels of each one before you choose the one for you.
This video shows the facts of nitric oxide and how it really affects the body:
Check out this nitric oxide wiki for more information about the best nitric oxide supplement for you.