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Effects of acute caffeine, theanine and tyrosine supplementation on mental and physical performance in athletes

Body Composition Assessment
Author
Zaragoza et al.
Publication Year : 2019
Country : USA
Journal : Journal of the International Society of Sports Nutrition
A limited amount of research has demonstrated beneficial effects of caffeine and theanine supplementation for enhancement of mental performance. The purpose of this investigation was to determine whether the acute ingestion of a supplement containing caffeine, theanine and tyrosine improves mental and physical performance in athletes. Twenty current or former male collegiate athletes (age: 20.5±1.4 y; height: 1.82±0.08 m; weight: 83.9±12.6 kg; body fat: 13.8±5.6%) completed this randomized, double-blind, placebo-controlled …
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