Perhaps one of the most troublesome symptoms ofanorexia nervosaand other restrictive eating disorders–especially for family members and treatment professionals—is the patient’s belief that he or she is not ill.

The common consequence of not believing one is ill is that he or she does not want to get well. Indeed, a patient’s lack of concern for the problem has long been a defining feature of anorexia nervosa.

As far back as 1873, Ernest-Charles Lasègue, a French doctor who was one of the first to describe anorexia nervosa, wrote: “‘I do not suffer and must then be well,’ is the monotonous formula.”

Denial of illness is common in people with eating disorders. In fact, lack of insight into the severity of illness is a defining feature of anorexia nervosa.

The diagnostic criteria for anorexia nervosa include a “disturbance in the way in which one’s body weight or shape is experienced.” Patients may be extremely emaciated, yet believe they are overweight.

The Diagnostic and Statistical Manual of Mental Disorders, Fifth Edition (DSM-5), states: “individuals with anorexia nervosa frequently either lack insight into or deny the problem.”

How Eating Disorders Are Diagnosed

In earlier writings about anorexia nervosa, this lack of awareness of the problem was often called denial, having been first described when psychodynamic theories predominated.

More recently the term began to also be applied to psychiatric conditions such as schizophrenia and bipolar disorder. Brain imaging studies seem to indicate a brain connection between anosognosia and these conditions.

The National Alliance on Mental Illness (NAMI) reports that anosognosia affects 30% of people with schizophrenia and 20% of people with bipolar disorder, and is believed to be the primary reason that patients with these disorders often do not take their medication.

In 1997, Dr. Casper wrote, “The lack of concern to the potentially dangerous consequences of undernutrition indeed suggests that alarming information might not be processed or might not reach awareness.” Someone with a malnourished or damaged brain may not be thinking clearly enough to use denial as an emotional defense mechanism.

Compensatory Behaviors in Eating Disorders

Implications

Viewing anorexia nervosa through the lens of anosognosia has significant ramifications. If an individual suffering a severe mental illness withlife-threatening complicationsdoes not believe he or she is ill, he or she is unlikely to be receptive to treatment. This increases the potential risks for medical problems as well as a long course of illness.

These individuals may be incapable of insight-oriented treatment, which was, until recently, a common treatment for anorexia nervosa. This is one reason there is often a need for more intensive treatment such as residential care. It is also whyfamily-based treatment(FBT) may be more successful: in FBT, parents do the behavioral heavy lifting of restoring a patient’s nutritional health.

When someone with an eating disorder refuses to believe they are ill or seems disinterested in recovery, they aren’t necessarily being defiant or resistant. It’s more likely that they are incapable of insight.

Fortunately, motivation is not required for recovery if your loved one is a minor or is a young adult who is financially dependent. You can be firm and insist on treatment for them.

Dr. Vandereycken writes that “communicating with someone who has an eating disorder but denies it is not easy.” He suggests three strategies for loved ones:

In summary, anosognosia is a brain condition; it is not the same as denial. Fortunately, the brain recovers with renourishment and a return to a healthy weight. Motivation and insight usually return in time for the individual to tackle the remainder of their own recovery.

How Anorexia Affects the Brain

Further Reading

A review of research studies on anosognosia in mental Illness is available through theTreatment Advocacy Center.Laura Collins has written aboutanosognosia in anorexia nervosa.

6 SourcesVerywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.Vandereycken W, Deth RV.A tribute to lasègue’s description of anorexia nervosa (1873), with completion of its english translation.Br J Psychiatry. 1990;157(6):902-908. doi:10.1192/bjp.157.6.902Vandereycken W.Denial of illness in anorexia nervosa—a conceptual review: part 1 diagnostic significance and assessment.Eur Eat Disorders Rev. 2006;14(5):341-351. doi:10.1002/erv.721Konstantakopoulos G, Tchanturia K, Surguladze SA, David AS.Insight in eating disorders: clinical and cognitive correlates.Psychol Med. 2011;41(9):1951-1961. doi:10.1017/S0033291710002539American Psychiatric Association.Diagnostic and Statistical Manual of Mental Disorders.5th ed. Washington D.C.: 2013. doi:10.1176/appi.books.9780890425596National Alliance on Mental Illness.Anosognosia.Casper RC.Behavioral activation and lack of concern, core symptoms of anorexia nervosa?International Journal of Eating Disorders. 1998; 24:381–393. doi:10.1002/(SICI)1098-108X(199812)24:4<381::AID-EAT5>3.0.CO;2-Q

6 Sources

Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.Vandereycken W, Deth RV.A tribute to lasègue’s description of anorexia nervosa (1873), with completion of its english translation.Br J Psychiatry. 1990;157(6):902-908. doi:10.1192/bjp.157.6.902Vandereycken W.Denial of illness in anorexia nervosa—a conceptual review: part 1 diagnostic significance and assessment.Eur Eat Disorders Rev. 2006;14(5):341-351. doi:10.1002/erv.721Konstantakopoulos G, Tchanturia K, Surguladze SA, David AS.Insight in eating disorders: clinical and cognitive correlates.Psychol Med. 2011;41(9):1951-1961. doi:10.1017/S0033291710002539American Psychiatric Association.Diagnostic and Statistical Manual of Mental Disorders.5th ed. Washington D.C.: 2013. doi:10.1176/appi.books.9780890425596National Alliance on Mental Illness.Anosognosia.Casper RC.Behavioral activation and lack of concern, core symptoms of anorexia nervosa?International Journal of Eating Disorders. 1998; 24:381–393. doi:10.1002/(SICI)1098-108X(199812)24:4<381::AID-EAT5>3.0.CO;2-Q

Verywell Mind uses only high-quality sources, including peer-reviewed studies, to support the facts within our articles. Read oureditorial processto learn more about how we fact-check and keep our content accurate, reliable, and trustworthy.

Vandereycken W, Deth RV.A tribute to lasègue’s description of anorexia nervosa (1873), with completion of its english translation.Br J Psychiatry. 1990;157(6):902-908. doi:10.1192/bjp.157.6.902Vandereycken W.Denial of illness in anorexia nervosa—a conceptual review: part 1 diagnostic significance and assessment.Eur Eat Disorders Rev. 2006;14(5):341-351. doi:10.1002/erv.721Konstantakopoulos G, Tchanturia K, Surguladze SA, David AS.Insight in eating disorders: clinical and cognitive correlates.Psychol Med. 2011;41(9):1951-1961. doi:10.1017/S0033291710002539American Psychiatric Association.Diagnostic and Statistical Manual of Mental Disorders.5th ed. Washington D.C.: 2013. doi:10.1176/appi.books.9780890425596National Alliance on Mental Illness.Anosognosia.Casper RC.Behavioral activation and lack of concern, core symptoms of anorexia nervosa?International Journal of Eating Disorders. 1998; 24:381–393. doi:10.1002/(SICI)1098-108X(199812)24:4<381::AID-EAT5>3.0.CO;2-Q

Vandereycken W, Deth RV.A tribute to lasègue’s description of anorexia nervosa (1873), with completion of its english translation.Br J Psychiatry. 1990;157(6):902-908. doi:10.1192/bjp.157.6.902

Vandereycken W.Denial of illness in anorexia nervosa—a conceptual review: part 1 diagnostic significance and assessment.Eur Eat Disorders Rev. 2006;14(5):341-351. doi:10.1002/erv.721

Konstantakopoulos G, Tchanturia K, Surguladze SA, David AS.Insight in eating disorders: clinical and cognitive correlates.Psychol Med. 2011;41(9):1951-1961. doi:10.1017/S0033291710002539

American Psychiatric Association.Diagnostic and Statistical Manual of Mental Disorders.5th ed. Washington D.C.: 2013. doi:10.1176/appi.books.9780890425596

National Alliance on Mental Illness.Anosognosia.

Casper RC.Behavioral activation and lack of concern, core symptoms of anorexia nervosa?International Journal of Eating Disorders. 1998; 24:381–393. doi:10.1002/(SICI)1098-108X(199812)24:4<381::AID-EAT5>3.0.CO;2-Q

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