What happens when the athlete is not taking in sufficient energy to meet the demands of day-to-day life, including training and performance? Today, endocrinologist and sports physician, Dr Kathryn Ackerman, explains what relative energy deficiency in sport is, expands the female athlete triad of energy intake, bone health and menstrual function, and shares 3 important ways that you can support athlete health and performance. International Olympic Committee consensus statement on RED-S: https://pubmed.ncbi.nlm.nih.gov/29773536/ RED-S CAT (Relative Energy Deficiency in Sport Clinical Assessment Tool): https://bjsm.bmj.com/content/bjsports/49/7/421.full.pdf Australian Institute of Sport Female Performance & Health Initiative (including free education resources): https://www.ais.gov.au/fphi