Stress Response and Sleep Changes is the main area connected here, and any felt benefit should be read together with the human evidence base.
Some human supplement-context evidence is present and directly informs the score.
Representative tier calculated from paper evidence that passed the collection audit.
The representative ingredient tier is calculated from these target-level evidence groups.
10 new papers were added in this period. No new risk signal was identified.
Standalone side-effect signals and combination cautions are listed separately.
The group showed a positive signal, but individual contributions are hard to isolate. Not a stack recommendation.
Paper IDs and full lists are private. Only study types and summaries are shown.
Theanine administration elicits selective changes in alpha brain wave activity with concomitant increases in selective attention during the execution of mental tasks, and elicits improvements in cognitive function including learning and memory in human and ani
It is suggested that L-theanine has the potential to promote mental health in the general population with stress-related ailments and cognitive impairments.
It is shown that L-theanine not only reduces anxiety but also attenuates the blood-pressure increase in high-stress-response adults.
Combining L-theanine with caffeine, at levels and ratios equivalent to one to two cups of tea, eliminated the vasoconstrictive effect and behavioural effects of caffeine and supports previous findings of an interaction between these substances, despite a lack
It is demonstrated that L-theanine inhibits intestinal inflammation and protects against intestinal barrier disruption in mice with DSS-induced colitis.
Considering the anti‐inflammatory and antioxidants effects of l‐THE presented in the current review, further research must translate the existing knowledge gained from animal and cell models to exploring the potential metabolic health benefits and moderating e