Eating Disorder Test: How to Know If You Have One

Online screening tools can give you a useful starting point, but they can’t diagnose an eating disorder on their own. Two well-validated questionnaires, the SCOFF and the EAT-26, take only a few minutes and can flag whether your eating patterns warrant a closer look from a professional. Here’s how they work, what signs to watch for beyond any quiz, and what actually happens if you decide to seek help.

The SCOFF: A Five-Question Screen

The SCOFF is one of the most widely used eating disorder screens in clinical settings. It asks five yes-or-no questions, each tied to one letter in the name:

  • S: Do you make yourself sick (throw up) because you feel uncomfortably full?
  • C: Do you worry you have lost control over how much you eat?
  • O: Have you recently lost more than one stone (about 14 pounds) in a three-month period?
  • F : Do you believe yourself to be fat when others say you are too thin?
  • F : Would you say thoughts and fears about food and weight dominate your life?

A score of 2 or more “yes” answers indicates a likely eating disorder. That doesn’t mean you definitely have one, but it means the pattern is significant enough to bring up with a doctor or therapist.

The EAT-26: A More Detailed Assessment

The Eating Attitudes Test (EAT-26) is a 26-item questionnaire that digs deeper into specific thoughts and behaviors around food, dieting, and body image. Each item is scored on a scale, and the numbers are added up at the end. A total score of 20 or higher suggests you should discuss your results with a professional. The test also includes behavioral questions about purging, binge eating, and exercise habits. Answering “yes” to any of those behavioral items is enough to flag a concern on its own, regardless of your overall score. You can find the EAT-26 free online through several university and clinical sites.

What These Tests Can’t Tell You

Screening tools measure patterns, not diagnoses. They’re designed to cast a wide net, which means they sometimes flag people who don’t have a clinical eating disorder and occasionally miss people who do. They also can’t distinguish between full eating disorders and what’s sometimes called “disordered eating,” which sits on a spectrum between normal eating habits and a diagnosable condition. Disordered eating includes many of the same behaviors (skipping meals, rigid food rules, guilt after eating) but at a lower frequency or severity. That doesn’t mean it’s harmless. Disordered eating can still affect your health and quality of life, and it can progress into a clinical disorder over time.

Behavioral Signs Worth Paying Attention To

A quiz captures a snapshot. Your day-to-day relationship with food tells a fuller story. Some red flags are obvious, like making yourself vomit after meals or going days without eating. Others are subtler and easier to rationalize.

With binge eating, the hallmark is eating unusually large amounts of food in a short window (roughly two hours) while feeling unable to stop. You might eat rapidly, continue eating when you’re already full, eat when you’re not hungry at all, or eat alone because you’re embarrassed by how much you’re consuming. Frequent dieting without weight loss is another common pattern.

Restrictive eating can look like cutting out entire food groups, following increasingly rigid rules about what and when you can eat, or exercising intensely to “earn” or “burn off” calories. With avoidant restrictive food intake disorder (ARFID), the issue isn’t body image but an extremely narrow range of acceptable foods that keeps shrinking over time.

Bulimia involves cycles of binge eating followed by compensatory behaviors: vomiting, laxative use, fasting, or excessive exercise. These cycles often happen in secret, and people with bulimia frequently maintain a weight that looks “normal” to others, which can make it harder to recognize from the outside.

Physical Signs Your Body May Show

Eating disorders affect far more than your weight. Your body often sends signals that something is wrong before you’re ready to acknowledge the behavioral patterns. Irregular heart rhythms, low blood pressure, and chronic dehydration are common with prolonged restriction. Some people develop soft, downy hair on their arms, face, or torso as the body tries to insulate itself. If you’ve been purging, you might notice tooth enamel wearing away or calluses on your knuckles from contact with your teeth. These physical signs are things a screening questionnaire won’t pick up, but a doctor will look for them during an evaluation.

Screening Tools for Athletes

Standard questionnaires don’t always work well for athletes. Intense training schedules, high calorie needs, and a culture that normalizes body monitoring can make disordered patterns harder to spot. Several tools have been developed specifically for athletic populations, including the Brief Eating Disorder in Athletes Questionnaire (BEDA-Q) and the Eating Disorders Screen for Athletes (EDSA). A newer tool called the Athletic Disordered Eating (ADE) screening tool was designed to work across sports, competition levels, and genders, including male and gender-diverse athletes who have historically been underrepresented in eating disorder research. If you’re an athlete and a general screen doesn’t quite capture your situation, these sport-specific options may be more accurate.

What Happens During a Professional Evaluation

If a screening tool flags a concern, or if you recognize yourself in the behavioral and physical signs above, the next step is a professional assessment. This typically involves a team rather than a single provider: a doctor, a mental health professional with eating disorder experience, and often a dietitian who specializes in this area.

The medical side includes a physical exam (height, weight, vital signs, checking your skin and nails, listening to your heart and lungs) and lab work to look at electrolytes, blood counts, and organ function. These tests check for the nutritional and cardiovascular consequences that eating disorders can cause, some of which are serious even when someone looks physically healthy. Depending on the situation, imaging like X-rays or an electrocardiogram may be used to assess bone density or heart function.

The mental health evaluation focuses on your thoughts, feelings, and eating habits. A therapist will ask about your relationship with food, your body image, and how these patterns are affecting your daily life. This conversation is what ultimately determines whether your experience meets the criteria for a specific diagnosis, such as anorexia nervosa (characterized by extreme food restriction and intense fear of weight gain, typically with a BMI below 18.5), bulimia nervosa (binge-purge cycles occurring regularly), or binge eating disorder (weekly binge episodes for at least three months without compensatory behaviors).

The process isn’t about catching you doing something wrong. It’s about understanding what’s happening so you can get the right kind of support. Many people find that simply having someone name the pattern is a relief after months or years of trying to manage it alone.