Cited by 113Diet and metabolism studiesMuscle metabolism and nutritionSports Performance and Training

Ketone bodies and exercise performance: The next magic bullet or merely hype?

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Pinckaers, Philippe J. M., Churchward-Venne, Tyler A., Bailey, David, van Loon, Luc J. C.·2017·Sports Medicine

Abstract

Elite athletes and coaches are in a constant search for training methods and nutritional strategies to support training and recovery efforts that may ultimately maximize athletes' performance. Recently, there has been a re-emerging interest in the role of ketone bodies in exercise metabolism, with considerable media speculation about ketone body supplements being routinely used by professional cyclists. Ketone bodies can serve as an important energy substrate under certain conditions, such as starvation, and can modulate carbohydrate and lipid metabolism. Dietary strategies to increase endogenous ketone body availability (i.e., a ketogenic diet) require a diet high in lipids and low in carbohydrates for ~4 days to induce nutritional ketosis. However, a high fat, low carbohydrate ketogenic diet may impair exercise performance via reducing the capacity to utilize carbohydrate, which forms a key fuel source for skeletal muscle during intense endurance-type exercise. Recently, ketone body supplements (ketone salts and esters) have emerged and may be used to rapidly increase ketone body availability, without the need to first adapt to a ketogenic diet. However, the extent to which ketone bodies regulate skeletal muscle bioenergetics and substrate metabolism during prolonged endurance-type exercise of varying intensity and duration remains unknown. Therefore, at present there are no data available to suggest that ingestion of ketone bodies during exercise improves athletes' performance under conditions where evidence-based nutritional strategies are applied appropriately.

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Crossref · 10.1007/s40279-016-0577-y

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  • Ketone bodies are normally found in circulation in relatively small quantities ranging between 0.1 to 0.5 mmol/L.

    “Ketone bodies are lipid-derived low molecular weight hydrophilic molecules, and are normally found in circulation in relatively small quantities ranging between 0.1 to 0.5 mmol/L [190].”

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  1. [68]Balasse EO Fery F Neef MA Changes induced by exercise in rates of turnover and oxidation of ketone bodies in fasting man J Appl Physiol Respir Environ Exerc Physiol. 1978 44 1 5 11 627499

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Authors
Pinckaers, P. J. M., Churchward-Venne, T. A., Bailey, D., & van Loon, L. J. C.
Affiliations
Maastricht University Medical Centre (NL)
Venue
Sports Medicine
Published
2016-07-18
Volume
47
Issue
3
Pages
383-391
ISSN
  • 0112-1642 (ISSN-L)
  • 1179-2035
OpenAlex
W2476262144
Cited by
113
References
88
Citations by year
2026: 4 · 2025: 8 · 2024: 9 · 2023: 10 · 2022: 9 · 2021: 14 · 2020: 22 · 2019: 14 · 2018: 15 · 2017: 6 · 2016: 2
FWCI
9.92
Type
journal article
Language
en
Open access
Locations
  • Sports Medicine (publishedVersion, cc-by)
  • PubMed Central (publishedVersion, cc-by)
  • PubMed (publishedVersion)
  • Research Publications (Maastricht University) (publishedVersion, cc-by)
  • Research Bank (Australian Catholic University) (submittedVersion)
  • Research Publications (Maastricht University) (submittedVersion, other-oa)
Topics
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Muscle metabolism and nutrition
  • Health Sciences › Medicine › Orthopedics and Sports Medicine › Sports Performance and Training
Keywords
ketone bodies, exercise performance, ketogenic diet, nutritional ketosis, ketone salts, ketone esters, carbohydrate metabolism, lipid metabolism, endurance exercise, skeletal muscle bioenergetics, professional cyclists, sports nutrition
MeSH terms
Dietary Carbohydrates, Energy Metabolism, Humans, Ketone Bodies, Physical Endurance, Exercise, Muscle, Skeletal, Dietary Supplements, Athletic Performance, Athletes

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