Are you looking to buy NO2 supplements? I hope not, since this is nitric dioxide, not nitric oxide that you hopefully are looking for. A NO2 supplement can potentially be harmful while a NO suppleement is fine for consumption. A nitric oxide supplement works with L-Arginine to produce an increased bloodflow to the muscles allow a bigger "pump" feeling during workouts.
Many of the popular NO supplements will also contain some degree of caffein to get you all worked up before working out in order to last longer during lifting. Some people find that they go absolutely crazy when taking certain NO supplements and immediately, or after about 20-30 minutes start feeling like the incredible hulk.
They feel like they can lift heavier weights, with more focus, for longer periods of time. Not bad! However, it needs to be noted that most common nictric oxide supplements are not crated equal. With not only different tastes and effects, popular nitric oxide supplements differentiate themselves by ingredients.
Some would go as far as to say that some of the nitric oxide supplements out there today are dangerous long term, and should therefore be cycled. Cycling something just means taking that supplement for a period of time, say 3 weeks and then stop taking it for 1-3 weeks in order to get back on the same supplement again.
This method allows your body to get less used to the supplement and you can experience and increased effect long term from it. Most nitric oxide supplements should be cycled as they contain certain ingredients that can potentially lose their bang when the body gets used to them.
My personal experience to boost a workout with nitric oxide supplements is quite interesting. I use a very popular brand and have gotten some big kicks out of taking it. I train without it, but compete with it so to speak. That means, before a game I'll take a scoop or two of this specific supplement to increase alertness and focus.
All in all, this is not a necessary supplement at all. It will stimulate you to go work out and it will also help increase the size of your pumped up muscles and make your veins appear in areas you didn't know you had them, but I think it's probably a waste of time and money if your training regimen and diet program isn't intense enough to justify the effects of the supplement. If you are not lean now, then this will only help you lift more and get better focus... The vein effect will greatly deminish.
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