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ORIGINAL RESEARCH article

Front. Nutr.
Sec. Nutrition, Psychology and Brain Health
Volume 11 - 2024 | doi: 10.3389/fnut.2024.1425707

Coffee Consumption and Alertness -A Study Among Office Workers

Provisionally accepted
Herqutanto Herqutanto Herqutanto Herqutanto Tria Rosemiarti Tria Rosemiarti *Dian K. Dewi Dian K. Dewi Dewi S. Soemarko Dewi S. Soemarko Ari F. Syam Ari F. Syam
  • University of Indonesia, Depok, Indonesia

The final, formatted version of the article will be published soon.

    Background: Coffee consumption is popular among office workers. it plays an important role in improving alertness due to its caffeine substances. Alertness is crucial for white-collar workers to support productivity and one of the parameters is alertness reaction time. The change of reaction time would be categorized into shorter and longer compared to the first measurement, before coffee consumption. The longer reaction indicated a decline of alertness. The objective of this study is to observe the relationship between coffee consumption and alertness improvement. Material and Methods: This is a cross-sectional study, comparing coffee drinkers and non-coffee drinkers. All participants underwent similar assessments on alertness using Lakassidaya tool and a 7-day fluid diary to record coffee consumption and caffeine intake. Alertness was measured in the morning (baseline) and 30 minutes after coffee consumption (end line). The participants of the study were office workers of a company in Jakarta, Indonesia. Results: There were 121 participants who completed the study with 47.1% (n= 57) participants being coffee drinkers. There was no difference in the characteristics of the respondents. The coffee consumption among these workers was 247 (157 -391) mL/day with caffeine intake was 72 (36 -121) mg/day which was lower than the mini mum amount to trigger positive alertness reaction. There was no significant association between coffee consumption and alertness (OR = 1.538 (0.288 -1.467); p-value = 0.403) as well as the change in reaction time between coffee drinkers and non-coffee drinkers (17.3 (1.4 -32.2) ms vs. 13.0 (-3.9 -26.0) ms; p-value = 0.111). However, there was a trend in the improvement of alertness among coffee drinkers as indicated by shorter reaction time in baseline (180 (160.2-195.2) ms compared to post-consumption (155 (146.6 -170.2) ms. Conclusions: There was no significant association between coffee consumption and alertness improvement between coffee drinkers and non-coffee drinkers among office workers in Jakarta, Indonesia.

    Keywords: Coffee, alertness, Reaction Time, Caffeine, office workers

    Received: 30 Apr 2024; Accepted: 09 Oct 2024.

    Copyright: © 2024 Herqutanto, Rosemiarti, Dewi, Soemarko and Syam. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) or licensor are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.

    * Correspondence: Tria Rosemiarti, University of Indonesia, Depok, Indonesia

    Disclaimer: All claims expressed in this article are solely those of the authors and do not necessarily represent those of their affiliated organizations, or those of the publisher, the editors and the reviewers. Any product that may be evaluated in this article or claim that may be made by its manufacturer is not guaranteed or endorsed by the publisher.