Binge Eating Disorder (BED)

What counts as a binge

Doctors use the DSM-5-TR criteria. A binge means:

• eating, in a discrete period (for example within 2 hours), an amount of food that is definitely larger than most people would eat in similar circumstances, and
• a sense of loss of control over eating during the episode

For BED, binges occur at least once a week for 3 months and include at least three of:

• eating much more rapidly than normal
• eating until uncomfortably full
• eating large amounts when not physically hungry
• eating alone because of embarrassment
• feeling disgusted, depressed or very guilty afterward

The binge eating causes marked distress and is not regularly followed by vomiting, laxatives, fasting or excessive exercise. Regular compensating behaviors point instead to bulimia nervosa.

Severity is graded by frequency: mild (1 to 3 episodes a week), moderate (4 to 7), severe (8 to 13) and extreme (14 or more).

Binge eating vs overeating

Most people occasionally overeat, for example at holidays. The difference in BED is the loss of control, the regularity and the distress that follows.

Signs of binge eating disorder

• finding wrappers or containers hidden, or large amounts of food disappearing
• eating secretly or at night
• rigid dieting alternating with binges
• avoiding eating in front of others
• frequent weight changes
• withdrawing from friends and activities
• low self-esteem and preoccupation with body shape

About half of people with BED live with obesity, but many have a weight in the average range. You cannot tell who has BED by their size.

Causes and risk factors

There is no single cause. Contributing factors include:

• genetics: BED runs in families
• dieting and food restriction, which can trigger a restrict-binge cycle
• emotional regulation: using food to cope with stress, sadness, boredom or loneliness
• mental health conditions: depression, anxiety, ADHD and substance use
• trauma and adverse childhood experiences
• weight stigma and teasing about body size

Health effects

• weight gain and obesity-related problems: type 2 diabetes, high blood pressure, high cholesterol, sleep apnea, joint pain and fatty liver
• digestive discomfort and acid reflux
• depression, anxiety and social isolation
• impaired work and relationships

Diagnosis

A primary care doctor, psychologist or psychiatrist will ask about eating patterns, feelings during and after episodes, dieting, compensating behaviors, mood and history. They may use screening questionnaires and check physical health with blood pressure, weight, and blood tests for blood sugar and cholesterol.

Treatment

Psychological therapy

• Cognitive behavioral therapy (CBT) is the first-line treatment. It targets the cycle of restriction and binge eating, builds regular eating patterns (3 meals and 2 to 3 snacks), identifies triggers and develops coping strategies. Many people stop binge eating or greatly reduce it.
• Guided self-help based on CBT is an effective first step for many adults.
• Interpersonal psychotherapy and dialectical behavior therapy are alternatives.

Medicines

• Lisdexamfetamine is FDA-approved for moderate to severe BED in adults. It reduces binge days but has stimulant side effects and misuse potential.
• SSRI antidepressants and topiramate are sometimes used off-label.
• Treating co-existing depression, anxiety or ADHD helps.

Weight and health

Strict diets usually worsen binge eating, so treatment focuses on regular eating first. Weight management, if needed, is addressed once binges are under control and with professional support.

Outlook

Many people recover with treatment, though relapse during stressful periods can happen. Early help improves results. Support groups and ongoing therapy reduce relapse.

Frequently asked questions

What is the difference between binge eating disorder and bulimia?

Both involve binge eating with loss of control. In bulimia nervosa, binges are regularly followed by compensating behaviors such as vomiting, laxatives, fasting or excessive exercise. In binge eating disorder, these behaviors are not regular.

What triggers binge eating?

Common triggers are strict dieting or skipping meals, stress, negative emotions, boredom, loneliness and being alone with large amounts of food. Restriction makes the body and brain more driven to eat, so regular meals are a key part of treatment.

Can binge eating disorder be cured?

Yes, many people recover. CBT stops or greatly reduces binge eating in a large share of people, and medicines can help further. Recovery may take months and occasional lapses can happen, but long-term remission is common.

How do I know if I have binge eating disorder?

If you regularly eat large amounts of food in a short time, feel out of control while eating, and feel distressed or ashamed afterward, at least once a week for 3 months, you may have BED. A doctor or eating disorder specialist can confirm and guide treatment.