Nelson Montana said:
Nelson...what do you base this on?
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I base it on the fact that it does nothing.
Glutamine is pure marketing hype. There is absolutely no evidence that it builds or preserves muscle. All studies on glutamine where it showed any effect was done on trauma patients and it was with IV administration.
As someone invoed within the industry I had access to lots of free supplements. I took hundreds of dollars worth of glutamine for months with zero results. The only tangible effect that oral glutamine has shown is that it raises ammonia blood levels.
There isn't a single person alive who has benefited from it other than they "think" it helps, or they "believe" it's good, or they "heard" it works, or someone "said" it's effective.
The body makes glutamine from other amino acids (BCAA's) But because it's so prevelant in muscle tissue the supplement comanies just couldn't pass up the opportunity to sucker everyone. And they've done a good job at it. We've all been chumpped into making these pricks richer. That's bad enough. But when people still insist it's good...well, that's embarassing. You shouldn't be praising it. You should be PISSED!
Is that enough, or do you need more evidence?
What about this, found in a few seconds at
http://www.ncbi.nlm.nih.gov/entrez/...ve&db=PubMed&list_uids=12611772&dopt=Abstract ?
1: J Appl Physiol 2003 Feb 28; [epub ahead of print] Related Articles, Links
Glutamine supplementation further enhances exercise-induced plasma IL-6.
Hiscock NJ, Petersen EW, Krzywkowski K, Boza J, Halkjaer-Kristensen J, Pedersen BK.
Rigshospitalet, The Copenhagen Muscle Research Centre, Copenhagen, North, DK-2100, Denmark; Rigshospitalet, Laboratory of Infectious Diseases, Copenhagen, North, DK-2100, Denmark.
Exercise stimulates the production and release of interleukin (IL)-6 from skeletal muscle. Glutamine is also synthesized in skeletal muscle and is involved in protein synthesis within this tissue. During exercise, plasma levels of glutamine decline and this may affect the concentration of plasma IL-6 via a decrease in IL-6 synthesis and release from muscle. We hypothesized that glutamine supplementation would attenuate the exercise-induced decrease in plasma glutamine concentration, and thus, further enhance levels of plasma IL-6. Eight healthy males participated in a randomised, double-blind, cross-over study in which they performed 2 h of cycle ergometry at 75% of VO2 peak. They received either glutamine, glutamine-rich protein or placebo supplementation at intervals during, and two hours after exercise. Exercise induced an 11-fold increase in plasma IL-6, which was further enhanced by both glutamine (18-fold) and glutamine-rich protein (14-fold) supplementation, administered at doses that attenuated the exercise-induced decrease in plasma glutamine concentration. Thus, it is concluded that glutamine supplementation further enhances plasma concentrations of IL-6 during exercise.
PMID: 12611772 [PubMed - as supplied by publisher]