Overview

Anorexia nervosa (also known as anorexia) is a serious mental health disorder characterized by a distorted body image and intense fear of gaining weight. This fear of gaining weight often leads people with anorexia nervosa to restrict their food intake to extreme levels in an attempt to lose weight and body mass. This self-perception, associated behaviors, signs, and symptoms1 of anorexia persist regardless of the person’s physical condition or potential health risks and medical complications. 

Note that a person’s weight does not necessarily indicate the presence or severity of anorexia. Individuals of any size can develop anorexia and other eating disorders, as it is defined by one’s relationship with food and body image rather than weight alone. In addition, people who restrict food may initially experience weight gain due to the body compensating for the lack of calories, which can significantly impact the health of the stomach. 

Anorexia can present in two subtypes: restricting, where individuals severely limit their food intake, and purging type, where individuals may binge eat and then engage in behaviors to prevent weight gain, like self-induced vomiting, excessive exercise, or misuse of laxatives.

Individuals with anorexia may also have co-existing mental health disorders. Anxiety, depression, obsessive-compulsive disorder (OCD),2 and substance use disorders are commonly present in individuals with anorexia nervosa. Additionally, anorexia nervosa and bulimia nervosa3 – both of which are life-threatening eating disorders – often occur together. Addressing these mental health conditions during treatment4 can significantly increase the likelihood of a successful recovery.

Symptoms

Anorexia nervosa is an eating disorder characterized by physical, emotional, and psychological symptoms. This complex mental disorder can involve a range of symptoms regarding eating habits, weight loss, body weight, and more. 

The signs and symptoms of anorexia nervosa can vary among individuals, but some commonalities can be categorized as follows. 

Food and weight symptoms

Below are some symptoms of anorexia related to food and weight: 

  • Intense fear of gaining weight, which does not diminish as weight loss occurs
  • Distorted body image, such as seeing oneself as overweight despite being underweight
  • Severe restriction of food intake, leading to lower body weight
  • Obsession with dieting, food, calories, and weight
  • Making excuses to avoid meals or situations involving food
  • Binge eating after extended peoples of avoiding or restricting food intake
Physical symptoms

Despite appearing at a normal weight, the complications of anorexia nervosa often lead to life-threatening health implications. Due to the restrictive eating and other behaviors associated with anorexia nervosa, the following physical symptoms may occur:

  • Significant or rapid weight loss
  • Sudden change in body weight and shape
  • For women, loss of menstrual periods (amenorrhea)
  • Fatigue and weakness
  • Insomnia or disturbed sleep patterns
  • Dizziness or fainting
  • Intolerance to cold
  • Dry skin, brittle hair, or hair loss
  • Dental problems like enamel erosion or cavities due to induced vomiting (specifically for those with the purging subtype)
  • Blood pressure fluctuations and abnormalities in blood counts
Emotional and psychological symptoms

Below are some of the psychological symptoms of anorexia: 

  • Preoccupation with body shape and weight
  • Negative or distorted self-image
  • Fear of weight gain
  • Denial of low body weight
  • Mood swings, irritability, or depression
  • Withdrawal from social activities, especially those involving food
  • Feeling a lack of control overeating habits

How anorexia affects overall health

These anorexia symptoms can indicate a serious health issue, and anyone exhibiting these signs may benefit from seeking support from a healthcare professional. While some symptoms of anorexia nervosa are related to food and weight, physical and psychological symptoms can profoundly affect an individual’s overall health and well-being. This list is not exhaustive, and each person with anorexia may experience a unique combination of symptoms.

Causes

Anorexia nervosa is influenced by various risk factors that can affect individuals of any age or gender. Anorexia nervosa can develop from a complex mixture of factors, including genetic, biological, behavioral, psychological, and social. Here is an outline of the causes that often play a role in developing anorexia nervosa. 

Genetic factors

Some evidence suggests that anorexia can run in families. If a person has a sibling or parent with anorexia, they may be at a higher risk of developing anorexia themselves. 

Biological factors

Certain biochemical imbalances in the brain, especially alterations in neurotransmitters like serotonin and dopamine, could potentially contribute to the development of anorexia.

Behavioral factors

Patterns of perfectionism, rigid thinking, or obsessive-compulsive thoughts or behaviors might increase an individual’s risk of developing anorexia nervosa. These tendencies can contribute to the dietary control and harsh self-criticism often seen in individuals with this disorder.

Psychological factors

Low self-esteem and a strong desire for control can also predispose a person to developing anorexia nervosa. Negative body image and dissatisfaction with one’s appearance often precede the development of eating disorders like anorexia.

Social factors

Cultural pressures emphasizing thinness or idealizing specific body types can contribute to the development of this disorder. Pressure from peers or media can impact a person’s self-image and potentially lead to disordered eating behaviors. 

Additionally, certain sports and activities that focus on body shape and size (such as ballet, gymnastics, modeling, or weightlifting) can also increase the risk of developing anorexia nervosa. These environments often emphasize weight and appearance; the pressure to maintain a particular body type can contribute to the onset of anorexia nervosa. 

These factors do not cause anorexia by themselves but can contribute to its development when combined. Note that not everyone exposed to these risk factors will develop anorexia, as individual factors also play a significant role in mental health and overall well-being.

Treatments

Common treatments for anorexia nervosainvolve a combination of nutritional, medical, and psychological therapies to restore the individual to a healthy weight, correct nutritional deficiencies, and address psychological issues that may be contributing to the disorder. Often, the goal of treatment is to assist the individual with anorexia in developing a healthier relationship with food and cultivating a better self-image, leading to long-term recovery and improved health overall.

Therapy 

Therapy can be a crucial component in treating anorexia. Psychotherapy helps individuals to address the psychological aspects of anorexia, potentially including fear of weight gain, distorted body image, fear of being a normal weight for their height, and low self-esteem or feelings of worthlessness. 

Different types of therapy may be employed for anorexia nervosa treatment depending on the individual. Cognitive-behavioral therapy (CBT) can be beneficial for anorexia treatment, focusing on identifying and changing unhealthy thoughts or behavioral patterns. Family-based treatment is also popular because it enlists the support of family members in an individual’s anorexia treatment, creating a more robust support system. Regardless of the type of therapy, the process can promote healthier coping mechanisms, a more positive self-image, and a healthier relationship with food.

Medication

There are currently no medications specifically approved to treat anorexia. However, medication may be part of an individual’s treatment plan to address co-existing conditions that are often associated with disorders like anxiety or depression. Additionally, olanzapine is an atypical antipsychotic medication that is suggested to help restore a healthy weight in some patients with anorexia nervosa, when used in combination with psychotherapy and nutritional rehabilitation. 

Medication may be beneficial in a treatment plan when combined with other approaches, like therapy or nutritional counseling. Note that the decision to use medication as a treatment can be made with a healthcare provider who is familiar with the individual’s specific symptoms, health, and medical history. Do not start, change, or stop a medication without consulting your doctor.

The BetterHelp platform is not intended for any information regarding which drugs, medication, or medical treatment may be appropriate for you. The content provides generalized information, not specific for one individual. You should not take any action without consulting a qualified medical professional.

Other anorexia treatment options

Treatment for anorexia nervosa can require a comprehensive and multi-faceted approach beyond therapy, medication, and self-care. Nutritional counseling can help individuals better understand their dietary needs and develop healthier food habits. 

In some cases, hospitalization may be necessary to address immediate malnutrition-related health risks. Residential or inpatient treatment can also provide structured, intensive support. Finally, support groups can offer a sense of community and understanding, enabling individuals to learn from the experiences of others. As with all treatments, these options may be best pursued under the guidance of a healthcare professional.

Self-care

Self-care can be an essential and sometimes overlooked aspect of treatment and recovery from anorexia nervosa. Utilizing practices encouraging physical, emotional, and mental well-being can contribute majorly to the healing process. For example, establishing regular sleep patterns, low-impact physical activity (as approved by a healthcare professional), or adopting mindfulness practices to help manage stress can be valuable. 

Self-care strategies are often personalized and emphasize activities that the individual finds enjoyable and empowering. However, while self-care is valuable, it may be most effective as part of a comprehensive treatment plan overseen by healthcare professionals.

Resources

Therapy can play a significant role in treating anorexia and may address the psychological and behavioral aspects of the disorder. Therapists can help individuals understand the root causes of their fears around weight and food while also developing helpful coping strategies and challenging unhealthy thought patterns. Cognitive-behavioral therapy (CBT) can be particularly effective in treating anorexia because it focuses on identifying and changing problematic thoughts and behaviors.

Online therapy for anorexia nervosa treatment

Traditional face-to-face therapy is standard in anorexia treatment, but online therapy services like BetterHelp can be a helpful and convenient option, allowing individuals to connect with licensed therapists who specialize in eating disorders.

Other resources may include the following: 

For those with thoughts of suicide, contact 988 Suicide & Crisis Lifeline at 988. Please also see our Get Help Now page for more immediate resources.

For help with substance use, contact SAMHSA’s National Helpline at 1-800-662-HELP (4357).

Research

Research indicates that systemic family therapy and family-based therapy (FBT), also known as the Maudsley Model, are effective treatment methods for anorexia. These approaches use family dynamics and strengths to address eating and weight-related issues. FBT is typically divided into three stages: weight restoration led by parents, transitioning control over food to the individual, and managing other development issues. Though FBT and similar family-centered treatments have been widely implemented and effective in the past, an optimal approach integrates family involvement with their cost and commitment in mind.

A study published in the MDPI’s Nutrients journal shows ketamine might hold promise as a potential treatment for anorexia nervosa due to its impact on neurotransmitters, particularly serotonin and dopamine. Research indicates that ketamine can positively influence these neurotransmitter systems

Ketamine’s antidepressant effects, shown to be partly due to its impact on serotonin, could potentially improve mood and coexisting depression in individuals with anorexia. Its ability to modulate brain circuits related to reward and motivation might impact the often-altered dopamine system in anorexia. The initial research on ketamine as a treatment for anorexia has shown reductions in depression scores, suicidality, and eating disorder psychopathology. However, more extensive controlled trials are needed to further establish its efficacy and safety. Talk to a doctor before considering ketamine treatments, as these are not yet regulated or approved by the FDA.

Statistics

50% of people with eating disorders seek treatment

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Yale School of Medicine found that 50% of those with eating disorders like anorexia nervosa and bulimia nervosa sought treatment for their condition. Individuals with anorexia amount to 34.5% of those who sought therapeutic support.1

Anorexia prevalence and risk factors

Below are some more of the key statistics on anorexia:

  • The National Institute of Mental Health says, “The lifetime prevalence of anorexia nervosa in adults is 0.6%. Lifetime prevalence of anorexia nervosa was three times higher among women (0.9%) than men (0.3%).”
  • The Bulimia Project cites, “Young females are at the highest risk, and anorexia often begins in adolescence. The vast majority (95%) of people with an eating disorder are between the ages of 12 and 25.”
  • According to the UK’s Beat Eating Disorders Association, “Research suggests that around 46% of anorexia patients fully recover.”

Associated terms

Updated on August 30, 2024.
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