REDs and the Silent Suffering of Male Endurance Athletes

When elite runners push their bodies day after day, a hidden enemy can turn triumph into a spiral of setbacks. The pattern of race, illness, injury, repeat is not always a matter of bad luck; it often signals Relative Energy Deficiency in Sport (REDs), a condition that remains under‑recognised in male athletes.

Understanding REDs and Its Impact on Male Athletes

What REDs Means

REDs describes a mismatch between energy intake and the energy expended during training, recovery and daily life. When the body consistently receives fewer calories than it needs, hormonal balance, bone health and immune function can deteriorate. The condition was first identified in female athletes, but research now shows that men experience similar physiological disruptions.

How Under‑fueling Triggers the Cycle

Insufficient nutrition reduces glycogen stores, compromises muscle repair and weakens the immune system. The result is a higher susceptibility to respiratory infections, gastrointestinal upset and musculoskeletal injuries. Each episode forces an athlete to pause training, which can lead to anxiety, rushed return to competition and a renewed energy deficit, perpetuating the race‑illness‑injury loop.

The Silent Struggle: Why Men Keep Quiet

Cultural Expectations

Traditional notions of masculinity often equate endurance with toughness. Admitting fatigue or seeking help can feel like a sign of weakness, especially in sports where performance is publicly measured. This cultural pressure discourages open discussion of nutrition and health concerns.

Lack of Awareness

While organisations such as World Athletics have issued guidelines on REDs, many coaches and athletes remain unaware of the specific risks for men. The focus on visible injuries overshadows subtle metabolic signs, leaving athletes to interpret chronic tiredness as a normal part of training.

Jake Smith’s Story – A Case Study

Early Career and Rising Expectations

Jake Smith, a promising British long‑distance runner, burst onto the national scene at age 22. His coach encouraged high mileage and frequent races, believing that early success would secure sponsorship and selection for major championships.

The Race‑Illness‑Injury Loop

Within a season, Jake completed three half‑marathons, each followed by a bout of flu‑like symptoms. He attributed the illnesses to exposure during travel. Recovery periods were shortened, and he resumed training at previous intensity, only to develop a stress fracture in his tibia. The injury forced him to miss the national trials, yet he felt compelled to return quickly, repeating the pattern.

Diagnosis and Turning Point

After a third consecutive illness, Jake consulted a sports physician who ordered metabolic testing. The results revealed a chronic energy deficit of roughly 500 calories per day, confirming REDs. Nutrition counselling highlighted that his diet, rich in low‑calorie carbs but low in protein and fats, could not sustain his training load.

Recognising the Signs Early

• Persistent fatigue that does not improve with rest
• Frequent infections or prolonged recovery from minor illnesses
• Unexplained weight loss or difficulty gaining muscle mass
• Decreased performance despite unchanged training volume
• Menstrual irregularities in female partners (a signal of household energy stress)

Practical Strategies to Prevent REDs

1. Individualised Nutrition Plans: Work with a registered sports dietitian to calculate total daily energy expenditure and design meals that meet macronutrient needs.
2. Regular Energy Balance Monitoring: Use food logs, wearable devices and periodic blood tests to track calories consumed versus expended.
3. Periodised Training: Incorporate low‑intensity weeks and active recovery to allow the body to rebuild glycogen and repair tissue.
4. Medical Support: Schedule routine check‑ups with sports physicians who understand REDs, such as those affiliated with British Athletics.
5. Mental Health Resources: Access sports psychologists to address performance anxiety that may drive athletes to ignore bodily signals.
6. Education for Coaches: Provide workshops on REDs, highlighting that male athletes are equally vulnerable.

Role of Coaches, Federations, and Sports Medicine

National bodies like the NHS have published resources on REDs, yet implementation varies. Coaches should adopt evidence‑based screening tools, while federations must mandate nutrition education as part of athlete development programmes. Collaborative research from institutions such as the UCL Institute of Sports Science continues to refine diagnostic criteria and treatment pathways.

By recognising the early warning signs, prioritising balanced nutrition, and fostering an environment where athletes feel safe to discuss health concerns, the cycle of race, illness, injury and repeat can be broken. Jake Smith’s experience illustrates that awareness and professional support can restore both performance and wellbeing, offering a roadmap for countless male endurance athletes who have long suffered in silence.