While atypical anorexia nervosa (AAN) may share characteristics of anorexia nervosa (AN), it is an entirely different diagnosis found in the Diagnostic and Statistical Manual of Mental Disorders (DSM-5). Atypical anorexia nervosa is categorized in the DSM-5 as an Other Specified Feeding or Eating Disorder (OSED). (1)
Atypical anorexia nervosa is a term that refers to certain cases of anorexia nervosa that do not follow the established pattern. Generally speaking, most atypical anorexia nervosa cases meet all the criteria of AN, with the exception of a low body weight.
Some studies suggest that the prevalence of this condition lies around 13% for those identifying as female and 4.9% for those identifying as male, but this eating disorder affects all genders. (3)
For patients suffering from anorexia, one of the primary criteria for diagnosis is a significant weight loss. However, for those suffering from atypical anorexia nervosa, significant weight loss may not be present at all. At least not in the quick fashion that makes it so noticeable with those suffering from traditional AN.
Atypical anorexia nervosa is a newer diagnostic category for eating disorders in the DSM-5, so careful diagnosis is a critical part of proper healing.
To correctly diagnose atypical anorexia nervosa, there are a few things that the clinician needs to take into account. While unexplained or severe weight loss should be a quick indicator that a patient may be suffering from anorexia, the body weight alone may not be definitive.
Other criteria that you will need to take into account when diagnosing atypical anorexia nervosa include: (1)
Should you or a loved one fit into any of the above descriptions, they should be evaluated by a mental health professional or physician. However, even if they do not fit into the profile of someone with anorexia, this does not mean that they are not experiencing the symptoms associated with OSFED.
In diagnosing atypical anorexia nervosa, an individual's weight may be considered part of the evaluation process. However, someone suffering from atypical anorexia nervosa will more likely present with a significant weight loss over a more extended period than a sudden drop in weight.
However, if an individual meets any of the below-mentioned criteria, though are not considered underweight, they are more likely to receive a diagnosis of atypical anorexia nervosa: (4)
The American Psychiatric Association has defined the following signs and symptoms for the disorder: (1)
The effects of atypical anorexia nervosa may result in the following: (7)
Short-term effects of atypical anorexia nervosa may result in several medical problems that can require hospitalization, including:
Long-term effects of atypical anorexia nervosa may result in the following medical problems:
Since atypical anorexia nervosa doesn't fit into the standard diagnostic category as anorexia, it may be misdiagnosed as one of several other eating disorders, including:
Like many other eating disorders, you may also be suffering from a co-occurring disorder, which is another psychiatric disorder (such as depression or anxiety) that occurs alongside an eating disorder.
When seeking treatment, you must work with your team to treat both your eating disorder and your co-occurring disorder to ensure that you receive the best treatment available and increase your chances of a full recovery.
Atypical anorexia nervosa can be a very challenging condition to treat. However, with the right support system in place, it is more than accessible.
It’s important to note any underlying psychological conditions and triggers that may present for atypical anorexia nervosa. For most patients, a holistic approach to treating AAN offers the best chance at recovery.
Typically, treatment for atypical anorexia nervosa involves a multidisciplinary team – and therapeutic intervention focused on:
The following therapies have shown to be effective in the treatment of atypical anorexia nervosa: (8)
There are no medications approved for the treatment of atypical anorexia nervosa. However, several medications can be used to help treat the disorder's symptoms, including anxiety and depression medications and supplements to resolve nutritional deficiencies.
It’s vital to note that you should never start taking any medications or supplements without first consulting with your treatment team, as doing so can lead to unwanted side effects.
Atypical anorexia nervosa, like any eating disorder, should be approached with kindness and compassion for the struggling individual. There is much shame and stigma attached to eating disorders, especially lesser-known classifications like atypical anorexia nervosa. Thus, building a better understanding of AAN is a valuable part of the healing process for people with AAN, and those who love them.
Atypical anorexia nervosa, like many other eating disorders, has the potential to affect the physical and psychological health of the patient.
The patient is likely to develop certain complications, such as:
Due to the chronic nature of the condition, it affects the patient's quality of life. Some patients may also develop a loss of social identity, which can lead to isolation. Studies show that 97% of individuals who suffer from an eating disorder also suffer from one or more co-occurring conditions, including: (2)
The best way to cope with an illness like atypical anorexia nervosa is to work closely with experienced health professionals. Having someone to talk to about your concerns, and to ask questions, can be extremely reassuring and comforting.
Other coping mechanisms may include:
Prior to it’s addition to the DSM-5, atypical anorexia nervosa stood for a “less severe form of anorexia nervosa.” (4) In 2013, the American Psychiatric Association recognized the disorder with its diagnostic category, based on the DSM-5 diagnostic criteria. (5) More recent studies have indicated that patients with atypical anorexia nervosa can be just as medically ill as their peers with anorexia nervosa and can have even greater eating disorder psychopathology, which means the early assessment of atypical anorexia nervosa being “a less severe form of anorexia nervosa” is actually a dangerous misclassification. (8), (9)
As we continue to learn about AAN, more understanding and compassion for those struggling with this eating disorder are being established in treatment protocols.
Atypical anorexia nervosa is not often discussed in the media, but people are beginning to learn more about it.
Pop culture references of eating disorders typically vilify the disorders, as well as those struggling with them. However, instead of scaring the public, many who identify with these characters showcased in books and TV films, such as “Little Miss Perfect,” and “Starving in Suburbia,” feel ashamed of their own condition. Most portrayals serve as nothing more than harmful triggers to those actively struggling.
Increasing awareness of AAN through thoughtful, accurate representation in film and media will provide a more comprehensive understanding while opening treatment pathways for many who live with this condition.
The best way to help someone with atypical anorexia nervosa is to be there for them and positively influence their lives. It is also helpful to understand the disease and the symptoms that are typically associated with it. If your loved one is suffering from atypical anorexia nervosa, here are a few ways you can help support them:
At Within Health we believe in treating each eating disorder personally. If you or a loved one are struggling with atypical anorexia nervosa, or another eating disorder, help is available at your fingertips. Call our admissions team to get started.
The two terms are often used interchangeably, but they are not the same. Those with anorexia nervosa experience a great deal of weight loss, a distorted body image, and a fear of gaining weight. People with atypical anorexia nervosa are less likely to appear severely malnourished.
Yes! With the right treatment team and support system, it is very possible to make a full recovery. Our clinical team at Within Health provides clinically superior continuous care attuned to your specific needs. If you or someone you love is in need of healing for their eating disorder, please reach out to our clinical care team today.
If you or a loved one presents with symptoms of an eating disorder, it is important to seek treatment as soon as possible. These symptoms may include:
