Under-fueling in endurance runners: clinical signs, physiologic mechanisms, risks, and nutrition correction strategies
Under-fueling in endurance runners refers to an inadequate supply of energy and/or carbohydrate relative to training demands. While some athletes intentionally restrict intake for weight goals, chronic energy deficit—often termed Relative Energy Deficiency in Sport (RED-S)—is a clinically important syndrome with broad consequences for metabolism, performance, endocrine function, bone health, immune competence, and thermoregulation. A… Read More »