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Energy drink ingredients. Contribution of caffeine and taurine to performance outcomes


Peacock, A and Martin, FH and Carr, A, Energy drink ingredients. Contribution of caffeine and taurine to performance outcomes, Appetite, 64 pp. 1-4. ISSN 0195-6663 (2013) [Refereed Article]

Copyright Statement

Copyright 2013 Elsevier

DOI: doi:10.1016/j.appet.2012.12.021


While the performance-enhancing effects of energy drinks are commonly attributed to caffeine, recent research has shown greater facilitation of performance post-consumption than typically expected from caffeine content alone. Consequently, the aim of the present study was to investigate the independent and combined effect of taurine and caffeine on behavioural performance, specifically reaction time. Using a double-blind, placebo-controlled, crossover, within-subjects design, female undergraduates (N = 19) completed a visual oddball task and a stimulus degradation task 45. min post-ingestion of capsules containing: (i) 80. mg caffeine, (ii) 1000. mg taurine, (iii) caffeine and taurine combined, and (iv) matched placebo. Participants completed each treatment condition, with sessions separated by a minimum 2-day washout period. Whereas no significant treatment effects were recorded for reaction time in the visual oddball task, facilitative caffeine effects were evident in the stimulus degradation task, with significantly faster reaction time in active relative to placebo caffeine conditions. Furthermore, there was a trend towards faster mean reaction time in the caffeine condition relative to the taurine condition and combined caffeine and taurine condition. Thus, treatment effects were task-dependent, in that independent caffeine administration exerted a positive effect on performance, and co-administration with taurine tended to attenuate the facilitative effects of caffeine in the stimulus degradation task only. © 2013 Elsevier Ltd.

Item Details

Item Type:Refereed Article
Keywords:energy drink, caffeine, taurine, reaction time, performance
Research Division:Psychology
Research Group:Biological psychology
Research Field:Behavioural neuroscience
Objective Division:Health
Objective Group:Other health
Objective Field:Other health not elsewhere classified
UTAS Author:Peacock, A (Miss Amy Peacock)
UTAS Author:Martin, FH (Associate Professor Frances Martin)
UTAS Author:Carr, A (Associate Professor Andrea Carr)
ID Code:89935
Year Published:2013
Deposited By:Psychology
Deposited On:2014-03-20
Last Modified:2014-08-12

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