Relative Energy Deficiency in Sport

Learn how to recognize RED-S

We invite you to watch this educational video on Relative Energy Deficiency in Sport (RED-S). It aims to increase the understanding and awareness of RED-S among athletes, their entourage and family, and, in fact, every active person. 

This video was created by Soren Meeuwisse in conjunction with the Demystifying Medicine course at McMaster University, Hamilton, Canada: “We hope to help those touched by RED-S; providing information to aid in prevention, treatment, and emotional support.”

Please check out the links below and take the test (RED-S CAT), should you recognize patterns in yourself or have concerns that you might experience RED-S.


  • Mountjoy M, Sundgot-Borgen J, Burke L, Carter S, Constantini N, Lebrun C, et al. The IOC consensus statement: beyond the female athlete triad—Relative Energy Deficiency in Sport (RED-S). Br J Sports Med, 2014; 48(7): 491-497.
  • Mountjoy M, Sundgot-Borgen J, Burke L, Ackerman K, Blauwet C, Constantini N, et al. IOC consensus statement on relative energy deficiency in sport (RED-S): 2018 update. Br J Sports Med, 2018;52(11): 687-697.
  • Stenqvist, T. B. (2016). Prevalence of relative energy deficiency in sport among well-trained male Norwegian cyclists and long-distance runners (Master’s thesis, Universitetet i Agder; University of Agder).


Personal Stories of RED-S Experiences

RED-S websites and initiatives


  • Behind ShePower Sport are two sport medical professionals, Yoko Dozono and Katharina Grimm. With their combined global sporting background, some of which include Director of Medical affairs at Aspetar, member of Medicine & Science at World Anti-Doping Agency, heading the FIFA medical office, and an international level athlete, they are strong advocates for clean sports and female athletes’ health and rights.