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Nutrients
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Nutritional Supplementation in Health and Sports Performance
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Nutritional Supplementation in Health and Sports Performance

A special issue of Nutrients (ISSN 2072-6643). This special issue belongs to the section "Sports Nutrition".

Deadline for manuscript submissions: 25 April 2025 | Viewed by 933

Special Issue Editor

Dr. Mojtaba Kaviani

E-Mail Website
Guest Editor
Department of Nutrition and Dietetics, Acadia University, Wolfville, NS B4P 2R6, Canada
Interests: macronutrient manipulations and sport performance; sport supplements and recovery; sport bars and drinks for endurance, strength, and power; functional food and weight loss; glycemic control and diabetes; active aging strategies

Special Issue Information

Dear Colleagues,

We are pleased to announce the upcoming Special Issue on "Nutritional Supplementation in Health and Sports Performance." Nutritional supplements play a crucial role in enhancing athletic performance, speeding up recovery, and supporting overall health. Common supplements such as proteins, creatine, amino acids, and electrolytes are increasingly being used to improve endurance, strength, and recovery in athletes. These supplements offer a variety of health benefits from muscle repair to balancing fluid levels during high intensity training and continuous physical activities.

As the supplement industry continues to grow, understanding proper usage, dosage, and individual needs is essential for maximizing benefits and minimizing risks. While whole foods remain essential, supplements provide a practical and efficient means to achieve optimal nutrient intake for peak performance. Additionally, the co-ingestion of different sports supplements, such as proteins with creatine or amino acids, is an emerging area that requires further research to understand their combined effects on performance and recovery. We invite submissions exploring the latest research and innovations in nutritional supplementation, including the impact on sports performance, health, and new formulations. We encourage manuscripts on these topics and more to advance the conversation on supplementation in health and performance.

Dr. Mojtaba Kaviani
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Nutrients is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2900 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • endurance
  • metabolism
  • bioavailability
  • macronutrients
  • adaptation
  • hydration
  • synergy
  • optimization
  • muscle synthesis
  • ergogenic aids

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Published Papers (1 paper)

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Research

23 pages, 2928 KiB  
Article
Short-Term Magnesium Supplementation Has Modest Detrimental Effects on Cycle Ergometer Exercise Performance and Skeletal Muscle Mitochondria and Negligible Effects on the Gut Microbiota: A Randomized Crossover Clinical Trial
by Matthew C. Bomar, Taylor R. Ewell, Reagan L. Brown, David M. Brown, Beatrice S. Kwarteng, Kieran S. S. Abbotts, Hannah M. Butterklee, Natasha N. B. Williams, Scott D. Wrigley, Maureen A. Walsh, Karyn L. Hamilton, David P. Thomson, Tiffany L. Weir and Christopher Bell
Nutrients 2025, 17(5), 915; https://doi.org/10.3390/nu17050915 - 6 Mar 2025
Viewed by 711
Abstract
Background/Objectives: Although the importance of magnesium for overall health and physiological function is well established, its influence on exercise performance is less clear. The primary study objective was to determine the influence of short-term magnesium supplementation on cycle ergometer exercise performance. The hypothesis [...] Read more.
Background/Objectives: Although the importance of magnesium for overall health and physiological function is well established, its influence on exercise performance is less clear. The primary study objective was to determine the influence of short-term magnesium supplementation on cycle ergometer exercise performance. The hypothesis was that magnesium would elicit an ergogenic effect. Methods: A randomized, double-blind, placebo-controlled, two-period crossover design was used to study men and women who were regular exercisers. Fifteen participants ingested either a placebo or magnesium chloride (MgCl2 300 mg) twice per day, for 9 days, separated by a 3-week washout. During days 8 and 9, participants completed a battery of cycle ergometer exercise tests, and whole blood, vastus lateralis, and stools were sampled. The primary outcomes were the maximal oxygen uptake (VO2max), a simulated 10 km time trial, and the sprint exercise performance. Additional outcomes included skeletal muscle mitochondrial respiration, and, on account of the known laxative effects of magnesium, the gut microbiota diversity. Results: Compared with a placebo, MgCl2 supplementation increased the circulating ionized Mg concentration (p < 0.03), decreased the VO2max (44.4 ± 7.7 vs. 41.3 ± 8.0 mL/kg/min; p = 0.005), and decreased the mean power output during a 30 s sprint (439 ± 88 vs. 415 ± 88 W; p = 0.03). The 10 km time trial was unaffected (1282 ± 126 vs. 1281 ± 97 s; p = 0.89). In skeletal muscle, MgCl2 decreased mitochondrial respiration in the presence of fatty acids at complex II (p = 0.04). There were no significant impacts on the gut microbiota richness (CHAO1; p = 0.68), Shannon’s Diversity (p = 0.23), or the beta-diversity (Bray–Curtis distances; p = 0.74). Conclusions: In summary, magnesium supplementation had modest ergolytic effects on cycle ergometer exercise performance and mitochondrial respiration. We recommend that regular exercisers, free from hypomagnesemia, should not supplement their diet with magnesium. Full article
(This article belongs to the Special Issue Nutritional Supplementation in Health and Sports Performance)
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