evidence table
L-Theanine Cognition Meta-Analysis Evidence Table
Structured evidence table for L-Theanine Cognition Meta-Analysis, generated from 2 reusable source documents in the Migaku knowledge base.
| topic | claim | evidence level | citation | source |
|---|---|---|---|---|
| L-Theanine Cognition Meta-Analysis | For risk of bias assessment, the Cochrane Risk of Bias Tool (version 2.0) was used. | 1 | Mátyus RO (2025) | Promising, but Not Completely Conclusive-The Effect of l-Theanine on Cognitive Performance Based on the Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Trials. |
| L-Theanine Cognition Meta-Analysis | Background: Green tea ( Camellia sinensis ) has been consumed for centuries, and its beneficial effects on human health have been studied in recent decades. | 1 | Mátyus RO (2025) | Promising, but Not Completely Conclusive-The Effect of l-Theanine on Cognitive Performance Based on the Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Trials. |
| L-Theanine Cognition Meta-Analysis | l-theanine, an active ingredient in green tea, has been used to improve cognition and mood. | 1 | Mátyus RO (2025) | Promising, but Not Completely Conclusive-The Effect of l-Theanine on Cognitive Performance Based on the Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Trials. |
| L-Theanine Cognition Meta-Analysis | Context The bioactive compounds found in tea from Camellia sinensis, namely theanine, caffeine, and polyphenols, can potentially improve short-term and long-term health outcomes. | 1 | Payne ER (2025) | Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. |
| L-Theanine Cognition Meta-Analysis | Conclusions This meta-analysis provides evidence that theanine plus caffeine, and theanine alone, could be beneficial for cognitive and mood outcomes. | 1 | Payne ER (2025) | Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. |
| L-Theanine Cognition Meta-Analysis | Objective The aim of this study was to assess the effects of tea, theanine alone, or theanine plus caffeine on cognition, mood, and sleep outcomes, using data from randomized controlled trials (RCTs) in healthy participants. | 1 | Payne ER (2025) | Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials. |
Source documents
- Promising, but Not Completely Conclusive-The Effect of l-Theanine on Cognitive Performance Based on the Systematic Review and Meta-Analysis of Randomized Placebo-Controlled Clinical Trials.
- Effects of Tea (Camellia sinensis) or its Bioactive Compounds l-Theanine or l-Theanine plus Caffeine on Cognition, Sleep, and Mood in Healthy Participants: A Systematic Review and Meta-Analysis of Randomized Controlled Trials.