My initial conclusion on glutamine is that if I can't tell if it worked, then it's not amazing. Yesterday I had a moderate level of energy until about 7 o'clock. Then I started yawning really hard. I took a glutamine capsule at that point, but I also had dinner soon after, and then seemed to regain virility. Maybe I was just hungry.

I still have a lot of pills left, so I plan to finish up the bottle. But I am concluding my review for now. I will return with a long-term followup after the bottle is finished.