The effect of formulated natural sport drink containing sugarcane juice, calamansi juice, and fructooligosaccharide (FOS
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ORIGINAL ARTICLE
The effect of formulated natural sport drink containing sugarcane juice, calamansi juice, and fructooligosaccharide (FOS) on athletic gastrointestinal tolerance S. K. Chew1 · M. Maizura1 · A. Y. Hazwani2 · T. C. Tan1 Received: 20 September 2019 / Accepted: 1 April 2020 © Springer-Verlag Italia S.r.l., part of Springer Nature 2020
Abstract The research aims to examine the effects of fructooligosaccharide (FOS) concentrations on the physicochemical properties of formulated sports drinks (FSDs) and the consumption of FSDs on the athletic gastrointestinal (GI) tolerance during intermittent high-intensity exercise. Three FSDs were developed from the diluted sugarcane juice (6.6% sugar content) with the addition of 2% calamansi juice, by varying FOS concentrations (0%, 1%, and 2% w/v). Thirty trained athletes performed four separate trials (1 week recovery period) using an exercise protocol consisting of sprint, lateral hopping, and sprint plus vertical jump in four quarters (Q). Each athlete received the samples in a randomized crossover counterbalance order and consumed 4.5 and 1.5 ml/kg of body weight before Q1 and Q3, and before Q2 and Q4, respectively. The GI problem questionnaire with 10-point scale was completed by the athletes after each quarter. The addition of 2% FOS significantly (p
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