AAKG supplement by Ray Sahelian, M.D. AAKG benefit and side effects

AAKG contains arginine, a conditionally essential amino acid that has a number of vital roles in human biochemistry. Arginine plays a pivotal role in the urea cycle, helping to rid the body of excess ammonia. This amino acid is also important in protein synthesis as well as for the support of healthy immune function. AAKG has arginine with alpha-ketoglutarate, another key player in amino acid metabolism, as well as in energy production.

ADKG questions
Q. I have read information on AAKG from different websites. One site says, "Dramatically Increases Nitric Oxide Production For Increased Muscle Pump! AAKG is arginine alpha-ketoglutarate in a sustained release formula which is pH buffered to ensure maximum absorption. Arginine released into the bloodstream will dramatically increase nitrix oxide production. An increase in nitric oxide may lead to the following benefits: extended and enhanced "muscle pump" after training, improved endurance and recovery time, improved workout capacity, and increased sexual vigor." Is this statement true?
   A. A review of Medline in June 2008 did not reveal any human studies with AAKG supplements, therefore I think it is premature to make such statements.