Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise

Background Chocolate milk has gained recent scientific support as a recovery drink. However, it is known that high exercise-demand triggers gastrointestinal discomfort which continues post-exercise, thereby hindering this nutritional strategy. In addition, those who are lactose intolerant cannot ben...

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Main Authors: Cristiano D. da Silva, Dirce R. de Oliveira, Ítalo T. Perrone, Carlos H. Fonseca, Emerson S. Garcia
Format: Article
Language:English
Published: Taylor & Francis Group 2021-02-01
Series:Journal of the International Society of Sports Nutrition
Subjects:
Online Access:http://dx.doi.org/10.1186/s12970-020-00406-0
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author Cristiano D. da Silva
Dirce R. de Oliveira
Ítalo T. Perrone
Carlos H. Fonseca
Emerson S. Garcia
author_facet Cristiano D. da Silva
Dirce R. de Oliveira
Ítalo T. Perrone
Carlos H. Fonseca
Emerson S. Garcia
author_sort Cristiano D. da Silva
collection DOAJ
description Background Chocolate milk has gained recent scientific support as a recovery drink. However, it is known that high exercise-demand triggers gastrointestinal discomfort which continues post-exercise, thereby hindering this nutritional strategy. In addition, those who are lactose intolerant cannot benefit from a milk-based beverage. Thus, the aim of this preliminary study was to develop a low-fat, lactose-free, and leucine-enriched chocolate cow milk prototype (CML) representing nutrition-related recommendations for football players, as well as assess athletes’ individual subjective outcomes for gastrointestinal complaints and sensorial acceptability in a field-based setting following strenuous team-sport physical demands. Methods This study followed a single group and repeated-measured design with 10 football players (23 ± 2 yrs., 74 ± 14 kg, 174 ± 5 cm) who consumed CML following a 90-min football match simulation protocol (FMP). The total CML intake to achieve 0.150 g leucine·kg [BW]·h− 1 occurred in aliquots of 50, 30 and 20% at 0-, 45- and 75-min post-FMP, respectively. Athletes were evaluated by the prevalence, the type and severity (bloating, nausea, flatulence, and gastric reflux) of gastrointestinal complaints and sensorial acceptability (overall perception, appearance, consistency, and flavour) after drinking each aliquot in a 4-h recovery period. Results The CML showed higher scores for “Product Acceptability Index” (88%) and sensorial acceptability (~ 8 in 9-point hedonic scale). Kendall’s W with bootstrapped resample (95%CI) revealed agreement among respondents as “moderate” (overall perception, flavour) to “strong” (appearance, consistency) and with no significant agreement differences between rater response in the timeline analysis (0.57 up to 0.87; p > 0.05). Agresti-Caffo add-4 analysis (95% confidence interval, [95%CI]) revealed no differences in each time-point analysis versus baseline for athletes classified as having severe gastrointestinal symptoms, but confirmed concern with bloating (three athletes showed a transient response at 2-h and only one continued until 3-h; p = 0.051). Conclusions These preliminary findings suggest that CML presents good taste and high acceptability by the sampled athletes. Thus, CML may be an alternative sport drink for immediate post-workout supplementation to overcome the energy deficit, offer co-ingested leucine, maintain palatability and adherence including lactose intolerance following a team sport-specific fatigue. Trial registration RBR-2vmpz9, 10/12/2019, retrospectively registered.
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spelling doaj.art-02d4f624ea0a46e9a0015e17289c39352023-09-15T09:19:32ZengTaylor & Francis GroupJournal of the International Society of Sports Nutrition1550-27832021-02-0118110.1186/s12970-020-00406-012130216Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exerciseCristiano D. da Silva0Dirce R. de Oliveira1Ítalo T. Perrone2Carlos H. Fonseca3Emerson S. Garcia4Department of Physical Education, Institute of Life SciencesDepartment of Basic Life Sciences Institute of Life Sciences Department of Food Engineering, Center of Exact SciencesPharmaceutical Department, Institute of Life SciencesDepartment of Physical EducationBackground Chocolate milk has gained recent scientific support as a recovery drink. However, it is known that high exercise-demand triggers gastrointestinal discomfort which continues post-exercise, thereby hindering this nutritional strategy. In addition, those who are lactose intolerant cannot benefit from a milk-based beverage. Thus, the aim of this preliminary study was to develop a low-fat, lactose-free, and leucine-enriched chocolate cow milk prototype (CML) representing nutrition-related recommendations for football players, as well as assess athletes’ individual subjective outcomes for gastrointestinal complaints and sensorial acceptability in a field-based setting following strenuous team-sport physical demands. Methods This study followed a single group and repeated-measured design with 10 football players (23 ± 2 yrs., 74 ± 14 kg, 174 ± 5 cm) who consumed CML following a 90-min football match simulation protocol (FMP). The total CML intake to achieve 0.150 g leucine·kg [BW]·h− 1 occurred in aliquots of 50, 30 and 20% at 0-, 45- and 75-min post-FMP, respectively. Athletes were evaluated by the prevalence, the type and severity (bloating, nausea, flatulence, and gastric reflux) of gastrointestinal complaints and sensorial acceptability (overall perception, appearance, consistency, and flavour) after drinking each aliquot in a 4-h recovery period. Results The CML showed higher scores for “Product Acceptability Index” (88%) and sensorial acceptability (~ 8 in 9-point hedonic scale). Kendall’s W with bootstrapped resample (95%CI) revealed agreement among respondents as “moderate” (overall perception, flavour) to “strong” (appearance, consistency) and with no significant agreement differences between rater response in the timeline analysis (0.57 up to 0.87; p > 0.05). Agresti-Caffo add-4 analysis (95% confidence interval, [95%CI]) revealed no differences in each time-point analysis versus baseline for athletes classified as having severe gastrointestinal symptoms, but confirmed concern with bloating (three athletes showed a transient response at 2-h and only one continued until 3-h; p = 0.051). Conclusions These preliminary findings suggest that CML presents good taste and high acceptability by the sampled athletes. Thus, CML may be an alternative sport drink for immediate post-workout supplementation to overcome the energy deficit, offer co-ingested leucine, maintain palatability and adherence including lactose intolerance following a team sport-specific fatigue. Trial registration RBR-2vmpz9, 10/12/2019, retrospectively registered.http://dx.doi.org/10.1186/s12970-020-00406-0soccer playerathletediscomfortsports nutritionproduct acceptabilityworkout recoverymilk-based beverage
spellingShingle Cristiano D. da Silva
Dirce R. de Oliveira
Ítalo T. Perrone
Carlos H. Fonseca
Emerson S. Garcia
Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise
Journal of the International Society of Sports Nutrition
soccer player
athlete
discomfort
sports nutrition
product acceptability
workout recovery
milk-based beverage
title Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise
title_full Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise
title_fullStr Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise
title_full_unstemmed Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise
title_short Low-fat, lactose-free and leucine-enriched chocolate cow milk prototype: A preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise
title_sort low fat lactose free and leucine enriched chocolate cow milk prototype a preliminary study on sensorial acceptability and gastrointestinal complaints following exhaustive exercise
topic soccer player
athlete
discomfort
sports nutrition
product acceptability
workout recovery
milk-based beverage
url http://dx.doi.org/10.1186/s12970-020-00406-0
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