L-theanine Research Studies
Our new research publication summarising L-theanine's effects on aspects of cognition, mood and sleep
What is L-theanine?
L-theanine is an amino acid that was first identified in tea leaves (it's also found in some mushrooms).
Scientists have been studying L-theanine for its potential health benefits for decades.
It is one of the key ingredients used in our Ryde: shots, including FOCUS, RELAX and SLEEP.
01 — Study Overview
Why should I care?
Unlike many ingredients that rely on anecdotal evidence, L-theanine has been tested in randomized controlled trials, widely considered the gold standard in scientific research.
Our research question:
What does the latest research tell us about L-theanine's effects on aspects of:
02 — Results
What the research says:
Our science team's review summarized evidence from multiple systematic reviews and meta-analyses, including more than 50 randomised controlled trials and over 1800 participants. Overall, the studies suggested that L-theanine demonstrated benefits for focus, stress management and sleep quality.
The studies contain evidence showing:
Cognition:
- 100-400 mg/day can support aspects of cognitive performance, particularly on attention-based tasks.
- L-theanine appears to work well when paired with caffeine, typically at ratios of 1:1 to 2:1.
Mood:
- 200-400 mg/day may help users stay calm during demanding moments, without leaving them feeling drowsy. It may be useful when you need some help to chill out but still be on your A-game!
Sleep:
- 200-450mg/day improved several markers of sleep quality.
- Interestingly, L-theanine doesn't appear to increase how long you sleep. Instead, it may support the quality of sleep you're already getting.
03 — The bottom line
- Studied in human clinical trials.
- Can help support focus, calm during demanding situations and sleep quality in healthy adults.
- Doesn't appear to cause drowsiness – making it useful for anytime of day.
- Found in Ryde: FOCUS, RELAX & SLEEP.
At Ryde: our sole purpose is to make wellbeing feel easy. It's why we stay on top of the latest science, so you don't have to. Whatever today throws at you – Ryde: it.
