Hey everyone. Been lurking on the forums for awhile and just wanted to detail my experiences and see what everyone thinks.
ALCAR
I've been taking this for approximately 9 months and the effects have been very beneficial. I take 500mg per day; supplier is Relentless Improvement. My energy levels have shot up. I no longer sleep in or take hours to wake up mentally-I'm alert from the time I get out of bed. I feel like I need less sleep and I've seen significant athletic benefits as well. I recover faster, and have substantially better endurance. I've also seen marked improvements to my body composition; I feel like I've gradually lost 5-10lbs of fat with no associated muscle loss (I exercise 3-4x a week and have seen some strength gains over this period). 500mg seems to be the right dose for me: I use 1000 when I need a little extra energy, but I can't sustain that or else I begin to have sleep disturbances. 1500+ and it's an overload, I either don't feel anything or it's counterproductive.
The cognitive effects are interesting. I'm a lot more alert, but I also am prone to some bouts of anxiety, nothing too serious, and also find myself more distracted than before. On the plus side, I also find myself much more perceptive-I'm able to think more constructively and philosophically about my life etc., which if I have understood the forums correctly is a side effect of more choline in the brain (which ALCAR boosts). Overall, ALCAR has been of tremendous benefit and very little downside-I've taken it nonstop and don't really see the need for a break since this doesn't directly act on the brain.
Piracetam
I used to use this off and on (1600-2400mg), with varying success. Sometimes it just "hits you" and you're an instant genius. Other times you're foggy. I tried troubleshooting with choline but overall this one was just very inconsistent for me. I also found that this damages my metabolism-I felt much more sluggish and tired in the gym, sweat more, and felt like my body composition suffered. Also this felt like a stimulant; at the end of the day or on weekends when I didn't take it I'd really crash.
Noopept
I've used 10mg on maybe 7 occasions now. Hard to describe it-it lasts a lot longer than Piracetam but for me had a much more subtle effect, unlike the big peak of piracetam followed by the extreme fatigue. Once again had the same metabolic effects here. Granted I used it very sparingly but I could feel my reduced exercise performance (which was quite dramatic given the low dosages I used).
Uridine
Sorry Mr. Happy: I've tried this since Saturday (75mg TAU with B-complex and my usual ALCAR) and haven't liked it. I know it's early days but this one seemed to have odd physical consequences. Went to the gym to do my usual full-body workout (squats, dl's, ohp, row etc) and had almost no endurance-absolutely gasping for air and nearly stopped my workout. It almost seems to counterbalance the ALCAR. Cognitively, even after a few days, I notice the Zen-like focus but if these physical effects persist I don't want any of it. Also I've noticed it's a mild sedative and I really don't like that effect.
TL; DR: Great experiences with ALCAR, and even Piracetam at times (there were some incredible days). But question: has anyone else experienced the endurance/metabolic downsides of Piracetam, Noopept, Uridine? What might be causing it? And conversely, why do I feel so much stronger/more toned on ALCAR?