I mean, compared to caffeine alone, if you take a bunch of L-theanine and caffeine, you can literally feel the difference. With high doses of caffeine, the effe

I mean, compared to caffeine alone, if you take a bunch of L-theanine and caffeine, you can literally feel the difference. With high doses of caffeine, the effects of the L-theanine are strikingly obvious. All the anxiety and jitter just fades away. I also agree with what you're saying, though. The levels of L-theanine in green tea are way, way lower than the supplements I use, and I've literally never noticed any similar effects by drinking green tea, but I do think it's possible that the effects do persist at such low doses even if it's harder to measure and not as blatantly obvious. There's probably a reason Buddhist monks choose to drink it - they're far more in tune with their mental state at any given moment and are much more likely to notice very subtle effects on their consciousness.