Effects of Sodium Intake on Health and Performance in Endurance and Ultra-Endurance Sports

Eleftherios Veniamakis, Georgios Kaplanis, Panagiotis Voulgaris and Pantelis T. Nikolaidis
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Eleftherios Veniamakis: Department of Nutrition and Dietetics, Hellenic Mediterranean University, 72300 Sitia, Greece
Georgios Kaplanis: Department of Nutrition and Dietetics, Hellenic Mediterranean University, 72300 Sitia, Greece
Panagiotis Voulgaris: Department of Nutrition and Dietetics, Hellenic Mediterranean University, 72300 Sitia, Greece
Pantelis T. Nikolaidis: School of Health and Caring Sciences, University of West Attica, 12243 Athens, Greece

IJERPH, 2022, vol. 19, issue 6, 1-13

Abstract: The majority of reviews on sports nutrition issues focus on macronutrients, often omitting or paying less attention to substances such as sodium. Through the literature, it is clear that there are no reviews that focus entirely on the effects of sodium and in particular on endurance sports. Sodium intake, both at high and low doses, has been found to be associated with health and performance issues in athletes. Besides, there have been theories that an electrolyte imbalance, specifically sodium, contributes to the development of muscle cramps (EAMC) and hyponatremia (EAH). For this reason, it is necessary to create this systematic review, in order to report extensively on the role of sodium consumption in the population and more specifically in endurance and ultra-endurance athletes, the relationship between the amount consumed and the occurrence of pathological disorders, the usefulness of simultaneous hydration and whether a disturbance of this substance leads to EAH and EAMC. As a method of data collection, this study focused on exploring literature from 1900–2021. The search was conducted through the research engines PubMed and Scopus. In order to reduce the health and performance effects in endurance athletes, simultaneous emphasis should be placed on both sodium and fluid intake.

Keywords: sodium; endurance sports; ultra-endurance sports; hyponatraemia; muscle cramps; hydration (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2022
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