In individuals with high energy expenditures (e.g., competitive athletes, dancers, recreational athletes), low energy availability occurs when energy intake is insufficient to meet biological requirements. Low energy availability is an underpinning factor in the Female Athlete Triad and Relative Energy Deficiency in Sport, two models designed to explain the health implications of prolonged periods or repeated acute bouts of insufficient energy intake. Despite increased scientific recognition of these health implications, many athletes and coaches remain unaware of low energy availability and/or its consequences. Coaches manage athletic training and have considerable engagement with athletes, hence can play an important role in the management of low energy availability exposure and the detection and mitigation of associated risks. Unfortunately, some coaches prioritise ‘high performance’ at the cost of the long-term health and wellbeing of their athletes. Ideally, coaches (with support from their national sporting organisations) should provide supportive environments and encourage exercise and eating behaviours that optimise performance and long-term health. This program of research aimed to understand the extent to which coaches were currently aware (and understood) of the consequences of low energy availability exposures. In addition to gauge current coach education support provided by national sporting organisations involved in endurance sports. Finally, the research aimed to improve the support for coaches to effectively manage the risks of low energy availability/Relative Energy Deficiency in Sport among developing athletes. [...]