evidence table

Theanine Attention Randomized Trial Evidence Table

Structured evidence table for Theanine Attention Randomized Trial, generated from 1 reusable source document in the Migaku knowledge base.

topicclaimevidence levelcitationsource
Theanine Attention Randomized TrialEvidence 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.2Tuncer 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.
Theanine Attention Randomized TrialResults Condition effects were found for leg strength ( p = 0.004, ηp 2 = 0.24) and back strength ( p = 0.008, ηp 2 = 0.19).2Tuncer 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.
Theanine Attention Randomized TrialAdditionally, no significant difference was found between the conditions in aerobic endurance, maximum isometric handgrip strength, and hand-eye coordination results.2Tuncer 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.
Theanine Attention Randomized TrialIntroduction Modern athletic performance is driven not only by physical capacity but also by rapid decision-making, attentional control, and visuomotor coordination.2Tuncer 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.
topicTheanine Attention Randomized Trial
claimEvidence 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.
evidence level2
citationTuncer SY (2026)
sourceAcute 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.
topicTheanine Attention Randomized Trial
claimResults Condition effects were found for leg strength ( p = 0.004, ηp 2 = 0.24) and back strength ( p = 0.008, ηp 2 = 0.19).
evidence level2
citationTuncer SY (2026)
sourceAcute 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.
topicTheanine Attention Randomized Trial
claimAdditionally, no significant difference was found between the conditions in aerobic endurance, maximum isometric handgrip strength, and hand-eye coordination results.
evidence level2
citationTuncer SY (2026)
sourceAcute 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.
topicTheanine Attention Randomized Trial
claimIntroduction Modern athletic performance is driven not only by physical capacity but also by rapid decision-making, attentional control, and visuomotor coordination.
evidence level2
citationTuncer SY (2026)
sourceAcute 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.

Learn next

Related evidence and supplement guides

SupplementL-TheanineA unique amino acid primarily found in green tea leaves that promotes relaxation, quietens menta...GuideL-theanine Sleep Randomized Trial: What the Evidence SaysL-theanine Sleep Randomized Trial has 1 source documents in the current Migaku evidence database...GuideL-theanine Stress Randomized Trial: What the Evidence SaysL-theanine Stress Randomized Trial has 2 source documents in the current Migaku evidence databas...GuideL Theanine Cognitive Performance Randomized Trial: What the Evidence SaysL Theanine Cognitive Performance Randomized Trial has 2 source documents in the current Migaku e...GuideTheanine Sleep Randomized Trial: What the Evidence SaysTheanine Sleep Randomized Trial has 2 source documents in the current Migaku evidence database....RankingBest Nootropics for Focus & Attention: 2026 Clinical Evidence ReviewWe separate the clinical evidence from the marketing hype, ranking the most effective brain supp...RankingBest Supplements for Anxiety: Evidence-Based Rankings 2026Anxiety supplements with genuine clinical evidence include ashwagandha (strongest for chronic an...RankingBest Collagen for Hair, Skin & Nails: 2026 Evidence-Based RankingsWe analyzed the amino acid concentrations and molecular weights of top collagen brands to identi...

Source documents

  1. 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.