What is relative energy deficiency in sport (RED-S)?

Doctor’s answer

RED-S develops when long-term energy intake does not adequately support training and essential body functions. It can affect menstrual function, bone health, hormones, immunity, mood, and performance. Recurrent stress fractures, unusual weight change, persistent fatigue, or menstrual disturbance warrant coordinated assessment by sports medicine, nutrition, and other relevant specialists.

This content is for education. Diagnosis, treatment, and rehabilitation require an individual assessment by a sports medicine specialist.