Low Energy Availability in Athletes & RED-S Management
Low Energy Availability (LEA) in athletes occurs when energy intake is insufficient to support the energy expended during training and basic bodily functions. This can lead to Relative Energy Deficiency in Sport (RED-S), a syndrome impacting metabolic rate, menstrual function, bone health, immunity, and cardiovascular health. Effective RED-S management includes early identification, nutritional rehabilitation, training modifications, and multidisciplinary support to restore energy balance and optimize both health and performance.
Low Energy Availability in Athletes & RED-S Management
Low Energy Availability (LEA) in athletes occurs when energy intake is insufficient to support the energy expended during training and basic bodily functions. This can lead to Relative Energy Deficiency in Sport (RED-S), a syndrome impacting metabolic rate, menstrual function, bone health, immunity, and cardiovascular health. Effective RED-S management includes early identification, nutritional rehabilitation, training modifications, and multidisciplinary support to restore energy balance and optimize both health and performance.
💡 Key Takeaways
- Define Low Energy Availability (LEA) and how training load can create an energy shortfall in athletes.
- Understand how LEA can contribute to RED-S and affect metabolism, menstrual function, bone health, and immunity.
- Identify common signs, symptoms, and risk factors of LEA/RED-S in athletes.
- Apply practical dietary strategies to prevent and manage LEA, including estimating energy needs, meal timing around training, and choosing energy-dense, nutrient-rich foods.
❓ Frequently Asked Questions
What is Low Energy Availability (LEA) in athletes?
LEA occurs when an athlete’s energy intake from food isn’t enough to cover training energy use plus basic body functions. It can be intentional or unintentional and may happen even if you don’t look underweight.
How does LEA relate to RED-S?
Prolonged LEA can lead to Relative Energy Deficiency in Sport (RED-S), a syndrome that affects metabolic rate, menstrual function, bone health, immunity, and overall performance.
What are common signs of LEA or RED-S?
Signs include fatigue, irregular or missing periods (in those who menstruate), frequent injuries, weakened bones, poorer immune function, and reduced training response.
How can athletes prevent or manage LEA?
Match energy intake to training demands with balanced meals (carbs, protein, healthy fats), time meals around workouts, consider guidance from a sports dietitian, allow recovery, and monitor symptoms rather than focusing solely on weight.