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Infographic. Relative energy deficiency in sport: an infographic guide
  1. Nicola Keay1,
  2. Alan Rankin2
  1. 1 Department of Sport and Exercise Sciences, Durham University, London, UK
  2. 2 Department of Sports Medicine, Sport Ireland Institute, Dublin, Ireland
  1. Correspondence to Dr Nicola Keay, Durham University, Durham DH1 3LY, UK; nickykeayfrancis{at}

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Relative energy deficiency in sport (RED-S)1 is a clinical syndrome encompassing adverse health and performance (figure 1) consequences of low energy availability (LEA)2 in male3 and female exercisers of all ages and all levels from recreational to elite. LEA is a situation where energy intake is insufficient to cover the combined energy demands of training and baseline physiological processes to maintain health. LEA can arise unintentionally or intentionally (figure 2). Unintentional LEA results from …

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  • Funding The authors have not declared a specific grant for this research from any funding agency in the public, commercial or not-for-profit sectors.

  • Competing interests None declared.

  • Provenance and peer review Not commissioned; externally peer reviewed.