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Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements

Multi-ingredient pre-workout supplements are a popular class of dietary supplements which are purported to improve exercise performance. However, the composition of these products varies substantially between formulations, thus making comparisons challenging. Therefore, the purpose of this study was...

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Detalles Bibliográficos
Autores principales: Jagim, Andrew R., Harty, Patrick S., Camic, Clayton L.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: MDPI 2019
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6413194/
https://www.ncbi.nlm.nih.gov/pubmed/30678328
http://dx.doi.org/10.3390/nu11020254
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author Jagim, Andrew R.
Harty, Patrick S.
Camic, Clayton L.
author_facet Jagim, Andrew R.
Harty, Patrick S.
Camic, Clayton L.
author_sort Jagim, Andrew R.
collection PubMed
description Multi-ingredient pre-workout supplements are a popular class of dietary supplements which are purported to improve exercise performance. However, the composition of these products varies substantially between formulations, thus making comparisons challenging. Therefore, the purpose of this study was to identify a common ingredient profile of top-selling pre-workout supplements and to compare ingredient dosages to established efficacious values. The top 100 commercially available pre-workout products were analyzed for listed ingredients and amounts, if available, from the supplement facts panel. The mean ± SD number of ingredients per supplement (n = 100) was 18.4 ± 9.7 with 8.1 ± 9.9 of these ingredients included in a proprietary blend at undisclosed quantities. Relative prevalence and average amounts of the top ingredients amounted to: Beta-alanine (87%; 2.0 ± 0.8 g), Caffeine (86%; 254.0 ± 79.5 mg), Citrulline (71%; 4.0 ± 2.5 g), Tyrosine (63%; 348.0 ± 305.7 mg), Taurine (51%; 1.3 ± 0.6 g), and Creatine (49%; 2.1 ± 1.0 g). Nearly half (44.3%) of all ingredients were included as part of a proprietary blend with undisclosed amounts of each ingredient. The average amount of beta-alanine per serving size was below the recommended efficacious dose. The average caffeine content was near the low end for an effective relative dose for a 70 kg individual (3–6 mg·kg(−1) of bodyweight).
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spelling pubmed-64131942019-03-29 Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements Jagim, Andrew R. Harty, Patrick S. Camic, Clayton L. Nutrients Article Multi-ingredient pre-workout supplements are a popular class of dietary supplements which are purported to improve exercise performance. However, the composition of these products varies substantially between formulations, thus making comparisons challenging. Therefore, the purpose of this study was to identify a common ingredient profile of top-selling pre-workout supplements and to compare ingredient dosages to established efficacious values. The top 100 commercially available pre-workout products were analyzed for listed ingredients and amounts, if available, from the supplement facts panel. The mean ± SD number of ingredients per supplement (n = 100) was 18.4 ± 9.7 with 8.1 ± 9.9 of these ingredients included in a proprietary blend at undisclosed quantities. Relative prevalence and average amounts of the top ingredients amounted to: Beta-alanine (87%; 2.0 ± 0.8 g), Caffeine (86%; 254.0 ± 79.5 mg), Citrulline (71%; 4.0 ± 2.5 g), Tyrosine (63%; 348.0 ± 305.7 mg), Taurine (51%; 1.3 ± 0.6 g), and Creatine (49%; 2.1 ± 1.0 g). Nearly half (44.3%) of all ingredients were included as part of a proprietary blend with undisclosed amounts of each ingredient. The average amount of beta-alanine per serving size was below the recommended efficacious dose. The average caffeine content was near the low end for an effective relative dose for a 70 kg individual (3–6 mg·kg(−1) of bodyweight). MDPI 2019-01-24 /pmc/articles/PMC6413194/ /pubmed/30678328 http://dx.doi.org/10.3390/nu11020254 Text en © 2019 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).
spellingShingle Article
Jagim, Andrew R.
Harty, Patrick S.
Camic, Clayton L.
Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements
title Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements
title_full Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements
title_fullStr Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements
title_full_unstemmed Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements
title_short Common Ingredient Profiles of Multi-Ingredient Pre-Workout Supplements
title_sort common ingredient profiles of multi-ingredient pre-workout supplements
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6413194/
https://www.ncbi.nlm.nih.gov/pubmed/30678328
http://dx.doi.org/10.3390/nu11020254
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