Hey wsup gymtime? Good to see ya on the boards again. Well here's my take on glutamine....
Fitnesfrk you're right in the sense that glutamine is one of the first aminos to go along w/ the BCAA's. I supplement w/ BCAA's whether bulking or cutting. All articles i've read concerning glutamine point to how little of it actually makes it to your muscles. The majority of it is lost in the stomach, that's where you'll get the "proper digestion from." A very very very small amount of glutamine will actually make it to your muscles. That's why i say it's a waste IMO, and considering it's so damn expensive as well.
If you're cutting glutamine can be readily used as energy, in this sense it can help preserve muscle. But not a big portion of the glutamine will go to the muscle and protect it, that's not how it works. It will be used as energy, and as an energy source, again i say it is quite expensive.
If you're bulking and eating the proper amounts of protein there is no need for supplementation w/ glutamine. For 1 you have an excess amount of protein in your system and if more glutamine is required it will take from the excess. And if you want to believe in the theory of glutamine competing w/ other aminos for absorption, glutamine would be a waste if you were bulking b/c of the excessive amount of protein in your system.