evidence table

L Theanine Reaction Time Randomized Trial Evidence Table

Name: L Theanine Reaction Time Randomized Trial Evidence Table
Creator: Migaku
License: https://creativecommons.org/licenses/by/4.0/

Structured evidence table for L Theanine Reaction Time Randomized Trial, generated from 2 reusable source documents in the Migaku knowledge base.

topic	claim	evidence level	citation	source
L Theanine Reaction Time Randomized Trial	Camellia sinensis Coffea arabica Camellia sinensis Paullinia cupana 1 2 3 3 3 4 3 5 l l Green tea () is an evergreen plant found mainly in the tropical and temperate regions of Asia, especially in China, Srí Lanka, Japan and India, and it has been consumed for centuries as food and for its beneficial effects on human health [,,].	1	Mátyus Rebeka Olga (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 Reaction Time Randomized Trial	Based on preclinical and clinical evidence, caffeine and-theanine are the two main constituents contributing to this effect [].	1	Mátyus Rebeka Olga (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 Reaction Time Randomized Trial	Caffeine is a stimulant compound belonging to the group of methylxanthines and is found in several plants, including(coffee),and(guarana) [,].	1	Mátyus Rebeka Olga (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 Reaction Time Randomized Trial	The main constituents of the leaves are polyphenols, but other components such as methylxanthine derivatives (caffeine, theobromine, theophylline), organic acids, flavonoids, free amino acids (such as-theanine) and several flavor components are also present in fresh leaves [].	1	Mátyus Rebeka Olga (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 Reaction Time Randomized Trial	Evidence regarding the acute effects of caffeine (CAF), L-theanine (TEA), and their combination remains inconsistent, particularly with respect to their combined influence on physical and cognitive performance in athletic populations.	2	Tuncer SY (2026)	Acute effects of combined and isolated caffeine and theanine supplementation on physical and cognitive performance in competitive athletes: a randomized, double-blind, placebo-controlled crossover study.
L Theanine Reaction Time Randomized Trial	Results Condition effects were found for leg strength ( p = 0.004, ηp 2 = 0.24) and back strength ( p = 0.008, ηp 2 = 0.19).	2	Tuncer SY (2026)	Acute effects of combined and isolated caffeine and theanine supplementation on physical and cognitive performance in competitive athletes: a randomized, double-blind, placebo-controlled crossover study.
L Theanine Reaction Time Randomized Trial	Additionally, no significant difference was found between the conditions in aerobic endurance, maximum isometric handgrip strength, and hand-eye coordination results.	2	Tuncer SY (2026)	Acute effects of combined and isolated caffeine and theanine supplementation on physical and cognitive performance in competitive athletes: a randomized, double-blind, placebo-controlled crossover study.
L Theanine Reaction Time Randomized Trial	Introduction Modern athletic performance is driven not only by physical capacity but also by rapid decision-making, attentional control, and visuomotor coordination.	2	Tuncer SY (2026)	Acute effects of combined and isolated caffeine and theanine supplementation on physical and cognitive performance in competitive athletes: a randomized, double-blind, placebo-controlled crossover study.