Review Articles
Nitric Oxide Supplements (Bodybuilding and Athletic Performance) Review Article

Reviewed and edited by Tod Cooperman, M.D. Tod Cooperman, M.D.
 Initial Posting: 11/11/11 
Nitric Oxide Supplements Review

Do Nitric Oxide Supplements Really Work?

Find Out If Nitric Oxide Supplements Really Build Muscle or Improve Performance 

What are nitric oxide (NO) supplements? Can they help you exercise longer? Do they really deliver “extreme muscle hardness” and “muscle growth activation” as promoted? took a hard look at the science and clinical studies surrounding nitric oxide supplements.
First, to be clear -- these supplements don’t contain nitric oxide, which is a gas. They generally contain L-arginine, which can increase nitric oxide in the body – sometimes. Nitric oxide, in turn, potentially increases blood flow to muscles and other organs. But will it do that for you? And will that increase muscle size and/or athletic performance? It may depend on your physical condition.
Before you buy a nitric oxide supplement, read this Nitric Oxide Supplements Review Article. You must join to get's valuable information about nitric oxide supplements and access our test results of L-arginine supplements that may increase nitric oxide. In this comprehensive report,
you'll discover:
    • What nitric oxide is and what does in the body. 
    • Whether or not nitric oxide supplements affect muscle size and athletic performance, and who may benefit most from nitric oxide supplements
    • Other potential health benefits of nitric oxide supplements
    • Test results of supplements with L-arginine, including quality ratings. 
    • What to look for, and look out for, with NO supplements.
    • Dosage amounts shown to work clinically.
    • Potential side effects of nitric oxide supplements containing L-arginine, including effects on the stomach and heart.

If you already are a member, SIGN IN now.
Join |  Sign In
Join Us on Facebook! Join Us on Instagram! Join Us on Twitter! Join Us on YouTube! Join Us on YouTube!
Product Reviews
Brands Tested
Health Conditions
CL Answers
Clinical Updates
Recalls & Warnings
Recommended Intakes
Where to Buy Products
Testing Program
How Products Were Tested
Quality Certification Program
Join CL Today
Join Free Newsletter
Group Subscriptions
Gift Membership
About Us
The CL Seal
CL Survey
Privacy Policy
Contact Us/Help

©2020, LLC. All rights reserved. A single copy of a report may be printed for personal use by the subscriber. It is otherwise unlawful to print, download, store or distribute content from this site without permission. name and flask logo are both registered trademarks of, LLC. This site is intended for informational purposes only and not to provide medical advice.