Cited by 274Iron Metabolism and DisordersExercise and Physiological ResponsesErythropoietin and Anemia Treatment

Iron considerations for the athlete: a narrative review

Open access
Sim, Marc, Garvican-Lewis, Laura A., Cox, Gregory R., Govus, Andrew, McKay, Alannah K. A., Stellingwerff, Trent, Peeling, Peter·2019·European Journal of Applied Physiology

Abstract

Iron plays a significant role in the body, and is specifically important to athletes, since it is a dominant feature in processes such as oxygen transport and energy metabolism. Despite its importance, athlete populations, especially females and endurance athletes, are commonly diagnosed with iron deficiency, suggesting an association between sport performance and iron regulation. Although iron deficiency is most common in female athletes (~ 15-35% athlete cohorts deficient), approximately 5-11% of male athlete cohorts also present with this issue. Furthermore, interest has grown in the mechanisms that influence iron absorption in athletes over the last decade, with the link between iron regulation and exercise becoming a research focus. Specifically, exercise-induced increases in the master iron regulatory hormone, hepcidin, has been highlighted as a contributing factor towards altered iron metabolism in athletes. To date, a plethora of research has been conducted, including investigation into the impact that sex hormones, diet (e.g. macronutrient manipulation), training and environmental stress (e.g. hypoxia due to altitude training) have on an athlete's iron status, with numerous recommendations proposed for consideration. This review summarises the current state of research with respect to the aforementioned factors, drawing conclusions and recommendations for future work.

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  • Both oral iron supplementation and intravenous iron injections have reliably been reported to improve iron status and endurance performance in iron-deficient anemic athletes.

    “In contrast, both oral iron supplementation and intravenous iron injections have reliably been reported to improve iron status and endurance performance in iron-deficient anemic athletes [255,257]”

    From Nutritional Considerations for the Vegan Athlete (2023) · cites this paper as [257]

  • Parenteral iron administration is an effective strategy to rapidly restore iron status in athletes who require it.

    “For athletes deemed to require intravenous or intramuscular parenteral iron administration, this should be applied only under medical guidance (given risk for infection and/or toxic level doses [264]) as an effective strategy to rapidly restore iron status [257,265].”

    From Nutritional Considerations for the Vegan Athlete (2023) · cites this paper as [257]

  • Iron supplementation in athletes without any form of iron deficiency does not improve indices of endurance performance.

    “Interestingly, iron supplementation in athletes without any form of iron deficiency does not improve indices of endurance performance [257].”

    From Nutritional Considerations for the Vegan Athlete (2023) · cites this paper as [257]

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Authors
Sim, M., Garvican-Lewis, L. A., Cox, G. R., Govus, A., McKay, A. K. A., Stellingwerff, T., & Peeling, P.
Affiliations
  • Edith Cowan University (AU)
  • Bond University (AU)
  • La Trobe University (AU)
  • The University of Western Australia (AU)
  • University of Victoria (CA)
Corresponding author
Peeling, Peter
Venue
European Journal of Applied Physiology
Published
2019-05-04
Volume
119
Issue
7
Pages
1463-1478
ISSN
  • 0020-9376 (ISSN-L)
  • 1439-6319
  • 1439-6327
OpenAlex
W2944217901
Cited by
274
References
133
Citations by year
2026: 29 · 2025: 43 · 2024: 45 · 2023: 46 · 2022: 41 · 2021: 31 · 2020: 32 · 2019: 6 · 2018: 1
FWCI
4.38
Type
journal article
Language
en
Open access
Locations
  • European Journal of Applied Physiology (publishedVersion)
  • PubMed (publishedVersion)
  • Bond University Research Portal (Bond University) (submittedVersion, other-oa)
  • UWA Profiles and Research Repository (UWA) (submittedVersion)
  • Edith Cowan University Research Online (Edith Cowan University) (submittedVersion)
Topics
  • Health Sciences › Medicine › Hematology › Iron Metabolism and Disorders
  • Health Sciences › Medicine › Rehabilitation › Exercise and Physiological Responses
  • Health Sciences › Medicine › Hematology › Erythropoietin and Anemia Treatment
Keywords
iron deficiency, athletes, female athletes, endurance athletes, hepcidin, iron absorption, iron metabolism, sex hormones, hypoxia, altitude training, physical activity, iron supplementation
MeSH terms
Female, Humans, Iron, Male, Sex Factors, Anemia, Iron-Deficiency, Athletic Performance, Athletes, Physical Conditioning, Human

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