Eating Disorders in Athletes: The Risks Behind the Performance

Which sports carry the highest risk?

While eating disorders can develop in any sport, certain categories carry significantly elevated risk:

• Aesthetic sports: Gymnastics, figure skating, diving, dance, and cheerleading. These sports are judged partly on appearance, creating direct pressure to maintain a specific body type. Prevalence rates range from 13–47% depending on the study and competitive level
• Weight-class sports: Wrestling, boxing, judo, rowing, and mixed martial arts. Athletes routinely engage in "cutting weight" — rapid weight loss before competition through dehydration, food restriction, and purging. These practices normalize disordered eating behaviors and can trigger lasting eating disorders
• Endurance sports: Distance running, cycling, triathlon, and cross-country skiing. The emphasis on power-to-weight ratio and the belief that lighter means faster drives chronic under-fueling. Prevalence rates of 15–25% are consistently reported
• Gravitational sports: High jump, pole vault, and ski jumping, where lower body weight provides a mechanical advantage

The common thread is any sport where leanness or low body weight is perceived — correctly or incorrectly — to enhance performance. This perception creates an environment where restricting food intake feels like a training strategy rather than a health risk.

Understanding RED-S: Relative Energy Deficiency in Sport

RED-S (Relative Energy Deficiency in Sport) is a syndrome that occurs when an athlete's energy intake is insufficient relative to their training expenditure. It replaces the older concept of the "female athlete triad" (disordered eating, amenorrhea, bone loss) because research now shows that energy deficiency affects all genders and has far broader consequences than the triad model captured.

RED-S affects virtually every system in the body:

• Bone health: Low energy availability reduces bone mineral density, increasing stress fracture risk — the most common warning sign that prompts medical evaluation
• Menstrual function: In female athletes, amenorrhea (loss of periods) or oligomenorrhea (irregular periods) signals insufficient energy to support reproductive function. This is not "normal for athletes" — it is a clinical red flag
• Metabolic suppression: The body reduces metabolic rate to conserve energy, which paradoxically impairs training adaptation and performance
• Immune function: Underfueled athletes get sick more often and take longer to recover
• Cardiovascular health: Chronic energy deficiency can cause bradycardia (dangerously low heart rate), low blood pressure, and in severe cases, cardiac arrhythmias
• Psychological effects: Depression, anxiety, irritability, impaired concentration, and disordered eating behaviors are both causes and consequences of RED-S

RED-S can occur even without a formal eating disorder. Any athlete who chronically under-eats relative to their training demands — whether intentionally or through inadequate nutritional knowledge — is at risk.

Warning signs in athletes

Disordered eating in athletes often hides behind the language of performance. Behaviors that would raise concern in other contexts are frequently reframed as discipline, commitment, or competitive edge. Warning signs include:

• Rigid food rules that go beyond legitimate sports nutrition — eliminating entire food groups, refusing to eat anything not self-prepared, or anxiety around uncontrolled eating situations
• Excessive exercise beyond training requirements — secret extra workouts, inability to take rest days, exercising through injury
• Body checking behaviors — frequent weighing, pinching skin, measuring body parts, comparing physique to teammates
• Menstrual irregularity or loss in female athletes — this is never "just because of training"
• Recurrent stress fractures — may indicate chronic energy deficiency affecting bone density
• Declining performance paradoxically — training harder while eating less leads to performance decline, which is then attributed to not trying hard enough, prompting more restriction
• Social withdrawal around meals — avoiding team dinners, eating alone, making excuses to skip shared meals
• Preoccupation with weight or body composition that extends beyond sport-relevant performance metrics
• Using laxatives, diuretics, or diet pills to manage weight
• Wearing baggy clothing to hide body changes or compensate for body dissatisfaction

How performance culture enables disordered eating

The sports environment creates several conditions that enable and reinforce disordered eating patterns:

• Weigh-ins: Regular team weigh-ins create anxiety and incentivize rapid weight manipulation rather than healthy nutrition. Research consistently shows that weigh-ins increase disordered eating risk
• Body fat testing: Using body composition metrics as performance indicators sends the message that changing body shape is a training variable, which it should not be
• Coach comments: Even well-intentioned comments about weight, body shape, or food choices from coaches carry enormous power. A single comment can trigger lasting dietary restriction
• Teammate modeling: When senior athletes model restrictive eating or weight manipulation, younger athletes internalize these behaviors as "what it takes to compete at this level"
• Reward structures: Athletes who lose weight and perform well in the short term receive positive reinforcement for behavior that is damaging long-term health
• Normalization: When an entire team or sport culture engages in restrictive practices, no individual behavior seems abnormal

Male athletes: the underscreened population

An estimated 33% of athletes with eating disorders are male, but they are significantly less likely to be identified, screened, or referred for treatment. Several factors contribute to this gap:

• Stereotypes: Eating disorders are still widely perceived as a "female problem," leading coaches, trainers, and athletes themselves to overlook signs in male athletes
• Different presentation: Male athletes are more likely to focus on muscularity and body composition rather than thinness. Behaviors like excessive protein supplementation, extreme muscle definition goals, and compulsive exercise may not be recognized as disordered
• Screening tools: Many eating disorder screening instruments were developed and validated primarily with female populations. Questions about "wanting to be thinner" may not capture the male experience of wanting to be "more cut" or leaner at the same weight
• Stigma: Male athletes face additional stigma around acknowledging any eating-related concern, compounding the already significant barrier to help-seeking in competitive sports
• Weight-class normalization: In wrestling, boxing, and MMA, extreme weight manipulation is so normalized that clinically significant behaviors are treated as standard practice

How the MindCheck Tools eating disorder screening for athletes helps

The MindCheck Tools eating disorder screening for athletes is a free, private assessment that accounts for the unique context of competitive sport. It takes under five minutes, runs entirely in your browser, and requires no account or login.

The screening helps identify patterns that competitive culture may normalize — rigid food rules, exercise beyond training, body preoccupation, and compensatory behaviors. Because sport culture makes it especially difficult to see your own behavior clearly, a structured screening provides an outside perspective grounded in clinical evidence rather than the distorted norms of your training environment.

If your screening results suggest concern, the next step is connecting with a healthcare provider who has experience working with athletes. Sports-specialized dietitians and therapists understand the intersection of performance goals and eating disorder risk in ways that general practitioners may not.

What coaches, parents, and teammates should know

If you are concerned about an athlete, the following guidelines reflect current best practices:

• Never comment on an athlete's weight, body shape, or food choices — even positively ("you look lean" reinforces the idea that appearance matters)
• Focus on observable behaviors when expressing concern: declining performance, fatigue, frequent injuries, mood changes, social withdrawal around meals
• Refer to the athletic trainer or team physician rather than attempting to counsel the athlete yourself
• Eliminate team weigh-ins and body fat testing unless medically indicated and conducted by qualified professionals
• Provide access to sports nutrition education that emphasizes fueling for performance rather than weight management
• Create a culture where rest and adequate nutrition are valued as performance strategies, not signs of weakness
• Share the athlete eating disorder screening as a private, non-confrontational resource

When to seek professional help

Seek evaluation from a healthcare provider experienced with athletes if:

• Eating patterns are rigid, secretive, or causing significant anxiety
• Menstrual periods have stopped or become irregular (female athletes)
• Stress fractures have occurred, especially more than once
• Performance is declining despite increased training
• Weight manipulation is occurring outside of structured sports nutrition guidance
• Exercise feels compulsive rather than enjoyable — missing a workout causes intense distress
• Thoughts about food, weight, or body shape are consuming significant mental energy

Eating disorders have the highest mortality rate of any mental health condition. Early identification and intervention dramatically improve outcomes. A screening does not replace professional evaluation, but it can be the moment when an athlete first recognizes that what competitive culture has normalized is actually a pattern that deserves attention.