Understanding Eating Disorders: Types, Symptoms & Getting Help

Anorexia Nervosa is characterized by severe restriction of food intake, an intense fear of gaining weight, and a distorted relationship with one's body. It most commonly develops in adolescence and early adulthood but can occur at any age. Critically: many people with anorexia are not visibly thin. Atypical anorexia — all the features of anorexia but at a “normal” or “overweight” body weight — is equally serious and equally dangerous. The fear of weight gain in anorexia is consuming and driven by brain chemistry, not personality.

Bulimia Nervosa involves cycles of bingeing — eating a large amount of food rapidly with a feeling of loss of control — followed by compensatory behaviors like self-induced vomiting, laxative use, or excessive exercise. Most people with bulimia are at a “normal” weight, which is one of the main reasons it goes undetected for so long. The binge-purge cycle is driven by brain chemistry and emotional regulation patterns — not moral failure. Medical complications are severe, including cardiac arrhythmias that can be fatal.

Binge Eating Disorder (BED) is the most common eating disorder in the United States. Like bulimia, it involves recurrent bingeing with a sense of loss of control — unlike bulimia, there are no compensatory behaviors afterward. BED affects all genders roughly equally and often co-occurs with depression, anxiety, and ADHD. If someone could “just stop” by trying harder, they would have stopped. BED involves disrupted reward circuitry that requires actual treatment — not shame.

ARFID (Avoidant/Restrictive Food Intake Disorder) is characterized by highly restricted eating that is NOT driven by body image concerns or fear of weight gain — instead driven by sensory sensitivities (textures, smells, colors), fear of choking or vomiting, or a lack of interest in food. ARFID commonly co-occurs with autism spectrum disorder, ADHD, and anxiety. It is not picky eating — ARFID causes clinically significant impairment in nutrition, growth, and daily life.

OSFED (Other Specified Feeding or Eating Disorder) is diagnosed when someone has clinically significant eating disorder symptoms that don't meet full criteria for another diagnosis. The “not otherwise specified” language does NOT mean “not that bad.” People with OSFED carry the same level of medical and psychological risk as those with full diagnoses — and they need treatment.

Eating disorders are brain disorders. The behaviors that look — from the outside — like choices, are being driven by disrupted brain chemistry and reward circuitry. In anorexia, restriction activates dopamine in a way that food does not — the “high” from restriction is neurologically real. In BED and bulimia, dopamine surges during a binge and crashes afterward, perpetuating the cycle. Anxiety circuits are hyperactive — food and body-related stimuli trigger genuine fear responses. This is not drama. It's neuroscience.

When the brain is malnourished, it cannot function normally. The prefrontal cortex — responsible for reasoning, insight, and decision-making — is one of the first areas compromised. A person with anorexia who is severely malnourished cannot fully engage in therapy — their brain lacks the metabolic fuel to process and apply what they're learning. This is why telling someone who is starving to “just eat more” is like telling someone with a broken leg to “just walk normally.” Weight restoration must happen alongside — and sometimes before — meaningful therapy work.

Eating disorders rarely travel alone. Common co-occurring conditions include anxiety disorders, OCD, depression, ADHD, trauma and PTSD, and autism spectrum disorder. Treatment that addresses only the eating disorder while ignoring co-occurring conditions is less likely to result in lasting recovery.

Medication is one tool in the treatment of eating disorders — it is rarely sufficient on its own, and the evidence base varies significantly by diagnosis.

Fluoxetine (Prozac) at 60mg/day is the only FDA-approved medication for Bulimia Nervosa — studies show significant reduction in binge-purge frequency. SSRIs also address co-occurring depression and anxiety common in bulimia. For Binge Eating Disorder, SSRIs show moderate benefit; for Anorexia Nervosa at low weight, SSRIs have limited evidence because a malnourished brain can't effectively use the serotonin boost.

Vyvanse (lisdexamfetamine) is the only FDA-approved medication specifically for Binge Eating Disorder in adults. It works by increasing dopamine and norepinephrine availability, reducing the compulsive reward-driven quality of bingeing. Clinical trials showed significant reduction in binge days per week. It is also helpful when BED co-occurs with ADHD — which is common.

In severe or treatment-resistant anorexia, olanzapine (Zyprexa) is sometimes used — it promotes weight gain, reduces obsessional thinking about food and calories, and has some anxiolytic properties. This is typically used in more severe presentations, not as a first-line outpatient treatment.

An important warning: GLP-1 agonists (Ozempic, Wegovy, Mounjaro) and appetite suppressants have no place in eating disorder treatment — they can be actively harmful. Weight loss is not a treatment goal for eating disorders. Recovery and health are.

Family-Based Treatment (FBT) / The Maudsley Approach is the gold-standard, evidence-based treatment for adolescent anorexia nervosa. Parents take an active role in managing their child's nutrition — externalizing the eating disorder, removing the power struggle, and restoring weight so the brain can engage in therapy. FBT correctly understands that a malnourished teenager cannot engage in insight-oriented therapy; the body has to come first.

Enhanced CBT (CBT-E) is the most evidence-supported individual therapy for bulimia and BED in adults. It addresses the specific cognitive distortions that maintain eating disorders — overvaluation of shape and weight, perfectionism, low self-esteem — alongside behavioral components like regular eating and exposure to feared foods.

DBT has strong evidence for eating disorders with co-occurring emotional dysregulation, particularly BED and bulimia. It targets the emotional regulation deficits that often underlie bingeing and purging — teaching concrete skills to replace eating disorder behaviors in moments of distress.

You need both a therapist and a registered dietitian who specializes in eating disorders. These are two different jobs and one person cannot do both. A specialized dietitian supports gradual normalization of eating without moralizing about food — they work on regular eating schedules, address food fears therapeutically, and coordinate with your prescriber and therapist. They do not prescribe diets, weight loss protocols, or calorie restriction.

Levels of care range from outpatient (weekly therapy) to Intensive Outpatient (9–15 hours/week), Partial Hospitalization (6–8 hours/day), Residential (24-hour care), and Medical Hospitalization for acute instability. If your insurer is denying a higher level of care that your treatment team recommends, you have the right to appeal — ask your treatment team for support with the appeal letter.

Many people with eating disorders have been in a provider's office and not known how to start the conversation — or started it and been dismissed. Language you can use:

With a primary care doctor: “I've been struggling with my eating in a way that I think is beyond normal. I'd like to be evaluated for an eating disorder.”

You do not have to have a specific diagnosis in mind. You do not have to be at a low weight. You just have to say: something is wrong and I need help.

To find ED-specialized providers: contact the NEDA Helpline at 1-800-931-2237, use Psychology Today's therapist finder (search “eating disorders” as the issue), or visit the IAEDP directory at iaedp.com. Equip Health (equip.health) offers telehealth eating disorder treatment including FBT for adolescents.

If you are in crisis — having thoughts of suicide or self-harm, or experiencing serious medical symptoms — call or text 988, text HOME to 741741, call the NEDA Helpline at 1-800-931-2237, or go to your nearest emergency room. Do not wait.

• “Do you think I need a higher level of care than what I'm currently receiving — and if not, what would change that?” Understanding your provider's threshold helps you stay ahead of crisis, not wait until things get dangerous.
• “What is the one thing you think is most maintaining my eating disorder right now — and how are we targeting it?” Treatment should have a clear focus. This question makes sure you and your provider are aligned on what's actually driving the eating disorder, not just managing symptoms.
• “Are there medications you think could help me, and are there any we should specifically avoid given my history?” If you have an eating disorder history, some medications require careful conversation before prescribing.
• “Do I have a dietitian on my team — and if not, can you help me find one who specializes in eating disorders?” If you are in eating disorder treatment without a dietitian, your treatment is incomplete.
• “What does recovery look like for someone like me — and what does success in treatment look like over the next 3 months?” Recovery can feel abstract and infinite. A concrete shorter-term picture makes it feel achievable — and helps your provider articulate a real plan.