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Iron status and exercise.

J Beard1, B Tobin

  • 1Nutrition Department, Pennsylvania State University, University Park, PA 16802, USA. its.psu.edu

The American Journal of Clinical Nutrition
|August 2, 2000
PubMed
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Young female athletes are at higher risk for iron deficiency anemia, impacting performance and immunity. Dietary adjustments and supervised low-dose iron supplements may be necessary to maintain iron status during training.

Area of Science:

  • Sports Medicine
  • Nutritional Science
  • Hematology

Background:

  • Iron deficiency anemia is more prevalent in athletic populations, particularly young female athletes, compared to sedentary individuals.
  • Anemia negatively affects athletic performance, immune function, and overall physiological health.
  • While diet is a primary factor, increased red blood cell and whole-body iron turnover also contribute to negative iron balance in athletes.

Purpose of the Study:

  • To highlight the increased risk of iron deficiency anemia in young female athletes.
  • To discuss the performance and health implications of iron deficiency in athletes.
  • To explore potential contributing factors beyond diet and suggest preventative measures.

Main Methods:

  • Literature review and synthesis of existing research on iron status in athletes.

Related Experiment Videos

  • Analysis of factors contributing to negative iron balance in athletic populations.
  • Evaluation of the role of diet, iron turnover, and potential losses.

    • Main Results:

    • Young female athletes exhibit a higher prevalence of iron deficiency anemia.
    • Iron deficiency significantly impairs athletic performance and immune function.
    • Increased iron turnover is a notable factor, while decreased absorption and increased sweat/urine losses are less likely explanations.

    Conclusions:

    • Young female athletes should be aware of their elevated risk for iron deficiency.
    • Medical and dietary supervision is recommended for managing iron status.
    • Consideration of low-dose iron supplementation may be beneficial for preventing iron depletion during intense training.