Anorexia Nervosa: A Complete Guide to Signs, Risks, and the Road to Recovery

Anorexia Nervosa is NOT simply "going on a diet" or a case of “I want to lose weight”; rather, it is a serious mental health condition worldwide, perhaps the least understood. Despite its impact on an individual’s personal, social & work life, the condition is treatable with proper intervention and therapeutic approaches.

This guide is for anyone looking for information on Anorexia Nervosa, including people experiencing symptoms personally, or their close ones, including children, partners and friends. This article covers the details about what anorexia is, who is affected, signs & symptoms, diagnostic methods, and descriptions of what recovering from anorexia includes.

What is Anorexia Nervosa?

Anorexia Nervosa is a mental health disorder involving extreme limitation of consumption of food, an overwhelming concern with becoming obese, and a significant distortion of body image or perception. As described in the DSM-5 (Diagnostic and Statistical Manual of Mental Disorders), criteria for diagnosing someone with anorexia nervosa include:

1. Significant reduction in body mass index: Body Mass Index (BMI) significantly below average for age, sex, development stage, and physical health.

2. Extreme fear of obesity: A persistent and intense fear of gaining weight or excessively engaging in activities to prevent weight gain.

3. Distortion in self-image/evaluation: Extreme distortion of body image due to perceived excess fatness, or failure to recognise the severity of their current body weight.

Restrictive vs. Binge-Purging Types of Anorexia Nervosa

Restrictive Type: The individual has restricted caloric intake through various means (dieting, fasting, or excessive exercise). There are no recurring periods of binge or purging behaviour.

Binge-Purging Type: The individual has recurring episodes of either binge eating or purging behaviours (e.g., self-induced vomiting, misuse of laxatives, use of diuretics, or enema).

Who is at Risk for Anorexia Nervosa?

• Previously, Anorexia affected young girls, from the age of 15 to 19 years old. But recent studies show onset as early as 13 years of age. The peak onset is typically between ages 15 and 25 years.

• The male-to-female ratio was 1:10, but this gap is narrowing, affecting one third of males. It has become more common in transgender population, especially restrictive type behaviour.[1]

• Anorexia affects people of all cultural backgrounds, income levels, and body types - including individuals whose bodies do not appear visibly underweight.

• High-risk populations include individuals in performance-based occupations or sports emphasizing leanness: dancers, gymnasts, wrestlers, runners, and models.[1]

The high mortality rate associated with anorexia nervosa stems from both the direct physical consequences of malnutrition and the higher likelihood of comorbid mental health disorders, including suicide among those affected by anorexia. Therefore, identifying the condition and providing access to appropriate care can significantly reduce the mortality rate in individuals with Anorexia Nervosa.

What are the signs & symptoms towards identification of anorexia nervosa?

Identifying anorexia early can be accomplished through the recognition of diverse symptoms - including physical, behavioural, and psychological warning signs.

Physical warning signs 

- Losing significant amounts of weight within a short period of time.

- Often feeling cold or being extremely fatigued.

- Fainting, dizziness, or persistent fatigue

- Hair thinning or loss

- Brittle fingernails, discoloured or dry skin.

- Absence of menstrual cycle (Amenorrhoea)

- Frequent stomach problems such as constipation, bloating, etc.

- Swelling in the jaw or facial bones (a more common symptom in the binge-purge type of anorexia)

- Tooth decay resulting from frequent vomiting

Behavioural warning signs 

- Limiting calorie intake drastically.

- Frequently going to the restroom immediately after eating.

- Wearing loose or baggy clothes which hide body shape.

- Steadily withdrawing from social events that involve food.

- Performing rigid rituals while eating, i.e., eating small portions of food at a time, eating in a certain order, taking longer than normal to eat.

- Engaging in excessive and compulsive exercise behaviour despite injuries or sicknesses.

- Denying hunger or minimizing how little they are consuming.

Psychological Warning Signs

- Constant Preoccupation with food, calories, nutrition, or dieting.

- Fearful of gaining weight or becoming “fat.”

- Distorted perception of one’s own body image - seeing oneself as heavier than they really are.

- Self-esteem directly tied to weight, shape, or appearance.

- Irritable, depressed, or anxious behaviours - particularly during mealtimes.

- Feeling of guilt post-eating.

- Socially withdrawn and losing interest in things they once liked doing.

It is important to understand that one does not have to look visibly thin to be experiencing anorexia nervosa. Do not assume that someone “does not look sick enough” to need help. 

What causes Anorexia Nervosa?

Risk factors

The aetiology of Anorexia is a complex interplay of different biological, psychological, and socio-cultural elements which are involved in developing the condition.

Biological & Genetics: Research has shown that anorexia can be hereditary and can be passed on to future generations. Studies also suggest neurobiologically based differences in how people process hunger, reward, and anxiety, and these may all contribute to the development of anorexia.

Psychological: People with anorexia tend to be perfectionists; achievement-oriented personalities, experience high rates of anxiety disorders; exhibit obsessive-compulsive behaviour, and report low self-esteem. Additionally, experiencing trauma (such as child abuse/childhood neglect) increases your risk for developing anorexia [2]. 

Developmental: Adolescence, transitioning to college, going through transition periods in general - make you vulnerable if you have a predisposition to anorexia.

Sociocultural: Our culture’s societal standards that equate being thin with being worthy; beautiful, successful; especially promoted through mass media - help to foster a cultural environment where disordered eating occurs. 

Interpersonal and Family Dynamics: Family conflict, family history of eating disorders, dieting due to weight preoccupation can contribute to an individual developing anorexia, but no specific family dynamic “causes” anorexia.

How is Anorexia Nervosa Diagnosed?

Diagnosis is either done by a psychiatrist or a psychologist. A comprehensive evaluation includes:

-Detailed Clinical Interview: Interviews of an individual’s eating habits, body image issues and concerns, mood, and history.

- Medical Exam: Physical examinations to assess medical health using assessment tools such as vital signs, body weight, and blood work.

- Psychiatric Evaluation: Evaluating for potential co-morbid psychiatric conditions such as major depressive disorder, anxiety disorder, obsessive-compulsive disorder, post-traumatic stress disorder, etc.

- Additional Testing (if needed): Bone density scans, ECGs, hormone panels, etc., depending upon presenting symptoms

Treatment for Anorexia nervosa: what are the options?

Anorexia nervosa requires evidence-based, multi-disciplinary treatment. The level of care depends on the individual’s severity of symptoms, the individual’s capacity to participate in treatment, and the amount of support available at home.

Out-Patient Treatment

For those who are physically stable and capable of consuming some form of nutrition, out-patient Treatment (regular appointments with a therapist, registered dietitian, and doctor) may be effective, especially during initial stages. CBT-e (Cognitive Behavioural Therapy for Eating Disorders), Family-Based Treatment (FBT), and ACT (Acceptance and Commitment Therapy) are evidence-based treatments that may be beneficial during this time.

Day Care Programs

Day care programs sit in the middle of being fully hospitalized and having enough independence to take care of yourself. The client receives a lot of structured help for multiple hours a day while still going back home every night. This is a great option for people transitioning from in-patient to out-patient care or if they need something other than weekly visits to get their eating disorder under control. The Day Care Program at Adayu uses the exact same multi-disciplinary team that is used in the in-patient program. Therefore, when the time arrives for a person to leave the in-patient program, there will be no interruption in their care.

When is Hospitalization be required?

Inpatient psychiatric hospitalization may be necessary and even lifesaving when:

• Medical instability: includes heart rates less than 50 beats per minute, electrolyte imbalance, extreme dehydration, syncopal episodes, etc.

• Malnourishment requiring medically supervised refeeding

• Rapid weight loss and the doctors recommend hospitalization for better and medically supervised management.

• Co-occurring mental health emergencies such as active suicidal behaviour or psychosis.

• Failure to respond to outpatient therapy or day care programs.

• Lack of safe environment to support recovery from an eating disorder.

Hospitalization is not a failure. It is often the most compassionate and medically appropriate decision- one which will help stabilize both mind and body so that longer-term recovery can begin.

What Does Inpatient Eating Disorder Treatment Look Like?

Treatment of eating disorders, such as anorexia, is about treating the entire individual and not just restoring their weight. Upon entering Adayu, an individual will receive effective and comprehensive inpatient care. A multidisciplinary team will coordinate the individual's care starting upon admission through discharge:

Psychiatrists will treat all medical issues related to your illness and also diagnose and treat co-occurring mental health illnesses such as depression or anxiety. They will monitor your overall stability of both mind and body.

Psychologists will conduct evidence-based treatments for anorexia nervosa, such as Cognitive Behavioural Therapy for eating disorders (CBT-e), Acceptance & Commitment Therapy (ACT), etc. They will assess each individual's specific psychological concerns and develop strategies to address those concerns.

The nutritionist will work individually with each patient, developing a personalized diet plan to ensure they are receiving adequate nutritional intake. The nutritionist will also oversee the process of "re-feeding," which is when patients are given food to help restore their lost weight and improve overall physical health.

Physiotherapy is available at Adayu to assist patients with regaining strength and endurance that has been lost due to malnutrition. Physiotherapists can help patients regain mobility and balance and learn how to perform daily activities without feeling exhausted.

Yoga therapy is included in the program at Adayu. Yoga provides a non-competitive outlet for building self-esteem and body awareness. Many people who struggle with disordered eating experience high levels of anxiety. Yoga helps to decrease this anxiety by providing a calm, peaceful atmosphere where individuals can focus on improving their relationship with their bodies.

Nursing staff will provide 24/7 monitoring while patients remain at Adayu.

Family members are involved in the treatment of the individual from the beginning to educate them on what to expect after leaving Adayu and to give them tools to support the individual in continuing recovery.

Can People Recover from Anorexia Nervosa?

Research shows that recovery from anorexia nervosa is not only possible - it is common. According to research studies conducted using standardised measures of recovery, many people diagnosed with anorexia nervosa do recover and lead normal lives without restrictions from their eating disorder.

However, recovery from anorexia nervosa is rarely straightforward. There may be setbacks along the way - especially during stressful times or when facing major life changes. However, with proper support systems, each positive step taken helps build resilience and increases confidence that long-term recovery is achievable.

Additionally, earlier intervention is associated with better results. Therefore, do not wait until “things get bad enough.” Seek professional help immediately for yourself or your loved one."

Frequently Asked Questions

Q: Can someone have anorexia nervosa without being underweight?

Yes. The DSM-5 added a new specifier called “Atypical Anorexia Nervosa”- which means that even though the person meets the criteria of anorexia (restrictive eating patterns), their weight is either in the normal or above average range. It’s important to note that having atypical anorexia is just as serious as having typical anorexia and will still require the same amount of clinical time and effort to treat. Do not wait until someone looks thin to reach out for help.

Q: Can men and boys get anorexia nervosa? 

Absolutely. Anorexia nervosa occurs in people of all sexes. Men and boys are severely under-diagnosed due to the fact that it’s stereotypically viewed as occurring solely in girls/women. Regardless of sex or gender, symptoms and complications occur equally as severe.

Q: Is there a way to tell how many eating disorders exists? 

The main difference among the three eating disorders lies within each respective diagnosis. Anorexia nervosa is primarily defined by restrictive eating and low body weight. Bulimia nervosa consists of alternating periods of binge/purge behaviour. Binge eating disorder includes recurring episodes of binge eating (with or without purging). All of these conditions are diagnosable and would be treated by a healthcare provider.

Q: How long will treatment for my anorexia nervosa take?

You cannot put a time stamp on recovery from anorexia. Recovery from anorexia typically takes years and treatment varies throughout those years. For example, hospitalisations can vary in length depending upon the severity of your anorexia and the treatment plan developed for you. Hospitalisation can range from several days to several weeks. After hospitalisation, a patient would transition into a day care program or an outpatient program. The goal is not to complete treatment as quickly as possible, but rather to successfully complete it.

Q: What steps can I take if I suspect my loved one has anorexia nervosa?

When speaking with a loved one who you suspect may have anorexia, approach the situation with compassion, not anger. Refrain from making negative comments regarding weight and appearance. Instead, express concern for their overall well-being and suggest they speak with a medical professional. If you feel as though they are in immediate physical harm, contact emergency services immediately. Lastly, realise that you don't have to go through this process alone; professional assistance is available.

Take that first step—reaching out to Adayu

References

1. Hoek HW. The Incidence and Prevalence of Eating Disorders Between 1975 and 2024: A Commentary on Lee andChi(2025).Int J Eat Disord. 2025 Oct. 58 (10):1893-1896.

2. Bozzola, E., Cirillo, F., Mascolo, C., Antilici, L., Raucci, U., Guarnieri, B., Ventricelli, A., De Santis, E., Spina, G., Raponi, M., Villani, A., & Marchili, M. R. (2024). Predisposing Potential Risk Factors for Severe Anorexia Nervosa in Adolescents. Nutrients, 17(1), 21. https://doi.org/10.3390/nu17010021

Dr. Riya Gupta

Consultant Psychiatrist