Energy Deficiency in Active Adults

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Energy deficiency is increasingly recognized beyond elite sport, affecting recreationally active adults who unintentionally underfuel relative to training, work, and life demands. Unlike overt dieting, energy deficiency can occur without significant weight loss and may present as persistent fatigue, stalled progress, low motivation, or increased injury risk. This trend has expanded conversations around energy availability as a functional issue rather than a body-weight issue. Fitness professionals can use this awareness to support better dialogue around fueling, recovery, and training tolerance, while referring individualized nutrition assessment to qualified professionals