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I've taken L-theanine for anxiety before, and it seems to help. I'm not sure if it's a placebo or not, but either way it seems to help
Earlier quoted context omitted.
Indeed, but you would really need to drink a lot of green tea to get the same amount of L-theanine you would in a supplement: "2.5 litres of brewed green tea would be needed to get 200mg of L-theanine". Also a question of how much dose you want of course...
And matcha tea?
For example, in one study "the final dose of 1 gram of Matcha green tea was taken on the testing day and contained only 12.4 mg of L- theanine." Source: https://www.ffhdj.com/index.php/DietarySupplementsNutraceuti...
Another study: "According to Kaneko et al., the content of l-theanine in matcha tea infusions amounts to 6.1 mg/L [50], while Unno et al. [9] found as much as 44.65 mg/g of that compound in matcha tea samples." Source: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7796401/
I'm not sure, but I guess one would use around 4 grams of matcha in a cup? So then at the upper bound you would come close to 200mg. But matcha has a lot of caffeine so probably not suitable to improve sleep.
Saved you a click.
> This study was not blinded so there could be a placebo effect. Saved you a click.
And if you do find an effect, then you should do a more high-effort self-blinded test.
I would have liked to have seen if there was any difference in the effects over time. I think it is easy to find something that helps with anxiety in the short term, but over enough time habituation, tolerance, and dependence can develop to most substances.
For my biology, L-theanine (200 mg) rounds out caffeine by stamping out the anxiety-inducing effect. By itself it just gives me a headache sometimes.
I once was sitting at my desk and had this overwhelming calm come over me. I was trying to figure out what I had eaten that morning/afternoon and then realized the 2-3 'Just Chill' sodas in my trash my mom had gotten me contained L-Theanine. Was a pretty blind test but I wasn't able to reproduce it effectively with L-Theanine supplements I found on amazon.