I am not taking glutamine for training purposes. Its an amino acid thats an essential building block for the chemicals in your brain that make you "feel good". Which would lead to increased sex drive. No, its not an anti-depressant and its not an aphrodisiac. It merely assists the process. It's probably made a difference for me because due to alot of stress i've been through my body hasn't been making enough of the good stuff. Thats just my expereience, I don't know a whole lot about it as far as training is concerned. I did get the reccomendation from a doctor to take it....IT WAS pointed out that for MOST people it WILL NOT make a difference at only 1,000mg...thats why I was surprised. According to the doc, it was my circumstances (depleted levels of essential amino acids due to extreme stress) that magnified my effect. I was told that yes, eventually for effect I will need at least 1-3grams a day. So pretty much unless your deficient, it won't really do much. I am going to take some of the suggestions on here after further research. thanks guys.