While your at it you might want to avoid these popular " muscle building " supplements -Glutamine -L-Arginine -Betaine -HMB Here's why http://robertsontrainingsystems.com/blog/5-supplements-not-worth-taking/?utm_content=bufferf072b&utm_medium=
This is a really good resource for nutrition and supplements information . http://examine.com/
I've used L-Arginine pre workout and definitely noticed a difference in pump. I also read that if taken in large doses just before bed it can boost GH
Of course, as with most supplements, could all be placebo and lies :D
@enjamin started
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While your at it you might want to avoid these popular " muscle building " supplements
-Glutamine
-L-Arginine
-Betaine
-HMB
Here's why
http://robertsontrainingsystems.com/blog/5-supplements-not-worth-taking/?utm_content=bufferf072b&utm_medium=
This is a really good resource for nutrition and supplements information . http://examine.com/