We examine the scientific evidence supporting The Female Athlete Triad and Relative Energy Deficiency in Sport (RED-S) syndromes. More research is necessary to advance the understanding of both syndromes; however, it is premature to consider RED-S as an evidence-based syndrome. Future research should specifically define RED-S components, determine its clinical relevance, and establish the causality of relative energy deficiency on RED-S outcomes.
More Triad and RED-S research is needed. The scientific and clinical basis of RED-S needs to be established.
Women's Health and Exercise Laboratory, Department of Kinesiology, The Pennsylvania State University, University Park, PA
Address for correspondence: Nancy I. Williams, Women's Health and Exercise Laboratory, Department of Kinesiology, The Pennsylvania State University, 276 Recreation Building, University Park, PA 16802 (E-mail: email@example.com).
Accepted for publication: June 13, 2019.
Editor: Sandra K. Hunter, Ph.D., FACSM.
Online date: July 1, 2019