> So, the bottom line of all the evidence I was able to readily
access is
> that to date there is no clear evidence that glutamine or BCAA
> supplementation, either alone or in combination, would have
meaningful
> benefits in resistance training.

There is certainly some evidence suggesting that BCAA
supplementation (especially leucine) has benefits in resistance
training. For a review, see Manninen AH. Hyperinsulinemia,
hyperaminoacidemia and post-exercise muscle anabolism: the search
for the optimal recovery drink. British Journal of Sports Medicine
2006 (in press.. will be published as "On-Line First" in the near
days)

> Regarding Dr. Misner's statement that glutamine stimulate GH
secretion,
> I personally have not been able to find a credible source
supporting
> that statement.

Am J Clin Nutr. 1995 May;61(5):1058-61. Links
Increased plasma bicarbonate and growth hormone after an oral
glutamine load.Welbourne TC.
Department of Physiology, Louisiana State University College of
Medicine, Shreveport 71130, USA.

An oral glutamine load was administered to nine healthy subjects to
determine the effect on plasma glutamine, bicarbonate, and
circulating growth hormone concentrations. Two grams glutamine were
dissolved in a cola drink and ingested over a 20-min period 45 min
after a light breakfast. Forearm venous blood samples were obtained
at zero time and at 30-min intervals for 90 min and compared with
time controls obtained 1 wk earlier. Eight of nine subjects
responded to the oral glutamine load with an increase in plasma
glutamine at 30 and 60 min before returning to the control value at
90 min. Ninety minutes after the glutamine administration load both
plasma bicarbonate concentration and circulating plasma growth
hormone concentration were elevated. These findings demonstrate that
a surprisingly small oral glutamine load is capable of elevating
alkaline reserves as well as plasma growth hormone.

PMID: 7733028 [PubMed - indexed for MEDLINE]


Best,

Anssi M.