Well, its sposed to stop lactic acid breakin down so much muscle after excersize, i got some aaaages ago an aint really bothered with it. Savin it till i decide im gonna do a bulkin stage.
The pack i got sez :
Glutamine is important in anabolic processes and cell volumization. It is the most abundant amino acid in muscle tissue and carries the amino groups essential for re-growth and repair of all tissues. Glutamine levels are depleted during excersize and supplementation may prevent excess muscle breakdown
In short, i guess it means it stops all the hard work u do goin down the drain a bit by helpin u get more mass for ur work.
-Gaz