Author: Mgr. Martin Jelínek
Expertise: nutrition, education in nutrition
Last expert review: September 3, 2024

Eating disorders are increasingly appearing in modern society and represent a serious health and psychosocial problem. They predominantly affect younger age categories and more often women, especially during adolescence and early adulthood. [1] Besides clinically diagnosed disorders, various forms of disordered eating behavior are increasingly emerging, which may not always meet all diagnostic criteria, but can still significantly affect physical and mental health. Statistics have long shown that eating disorders are among the mental illnesses with the highest rates of health complications and that approximately 5–10% of cases may end in death, especially if they have a chronic and untreated course. [2]
The two basic types of eating disorders are most commonly described as bulimia and anorexia. [3] However, the current understanding shows that these disorders are not isolated entities, but are part of a broader spectrum of eating behavior disorders that can intersect and evolve over time:
Bulimia (bulimia nervosa).
It involves repeated binge eating episodes, during which an individual consumes a large amount of food in a short period, followed by the implementation of compensatory mechanisms. The affected person intentionally purges food, induces diarrhea, excessively exercises or misuses laxatives or diuretics. The disorder most commonly appears in girls aged 13–18 years and can remain hidden for a long time because body weight often remains within the normal range. The primary therapeutic approach is psychotherapy focused on the relationship with food, the body, and self-worth.
Anorexia (anorexia nervosa).
It is a mental illness characterized by food refusal and a distorted body image. It most commonly appears between ages 14-18. It is characterized by deliberately induced weight loss, mainly achieved through reduced fluid and food intake, increased energy expenditure (exercise), and induced vomiting, diarrhea, or the use of anorectics and diuretics. Subjectively, it manifests as perceiving oneself as too fat even when significantly underweight. There is a persistent fear of weight gain and distorted body image. External symptoms include the loss of menstruation in women, insomnia, inability to concentrate, and overall exhaustion of the body.
In addition to these two most well-known disorders, we increasingly encounter other forms of eating disorders. These include:
The consequences of these disorders on metabolism are extensive and often fatal:
decreased potassium levels,
enlargement of the parotid glands,
slowed gastric emptying, constipation,
pancreatitis,
hypotension,
cardiac arrhythmias,
anemia,
dry, cracking skin,
increased tooth decay,
cramps, muscle weakness.
Besides the above physical problems, there are also psychological issues – feelings of sadness, loneliness, despair, helplessness, depression, and often suicidal tendencies (these are the second most common cause of death, immediately following exhaustion of the organism). [5]
Treatment of these disorders is a complex process requiring a multidisciplinary approach. Since they are mental disorders with serious physical impacts, simply adjusting the diet is usually not enough for full recovery. The therapeutic plan typically includes a combination of several key areas:
Psychotherapy.
This is the cornerstone of treatment. The most widespread method is cognitive-behavioral therapy (CBT), which focuses on identifying and changing dysfunctional thought patterns associated with food and body perception. Family therapy has proven highly effective in adolescent patients by involving the closest environment in the recovery process.
Psychiatric and somatic care.
Medical supervision is essential for continuous monitoring of the patient's physical condition and addressing health complications. In cases of comorbid conditions (depression or anxiety disorders), pharmacotherapy may be administered (e.g., antidepressants) to help stabilize the psyche. [6]
Nutritional therapy.
Its goal is to educate the patient about the physiological needs of the body and gradual refeeding. A nutrition therapist helps create a sustainable dietary regimen and guides the patient to stabilize weight without the need for extreme restrictions or compensatory behavior.
Inpatient care.
In cases where there is a significant life threat, organ failure, or if outpatient treatment is unsuccessful, hospitalization is necessary. It serves to acutely stabilize metabolic functions and ensure a safe weight increase under continuous professional supervision.
Data show that the treatment process is a long-term endeavor, with over 60% of patients achieving full recovery. [7]
The development and course of eating disorders are not isolated individual problems but are closely linked to the environment in which one lives. The social environment plays a significant role in early detection and prevention:
Family and close relationships.
The closest surroundings can be the first to recognize warning signs, such as noticeable changes in eating habits, extreme anxiety associated with food consumption, or social isolation. Family support is a critical factor for successful recovery.
Educational institutions and communities.
Schools should create an environment that supports a healthy body image and develops media literacy, particularly concerning unrealistic beauty ideals presented on social networks. Preventing pressure to be thin and building healthy self-esteem can significantly reduce the risk of developing the disorder.
Early intervention.
The prognosis of the disorder is directly proportional to the speed of seeking professional help. The earlier the diagnosis is made and treatment started, the higher the chance of full recovery and elimination of long-term consequences.
Sources:
[1] PubMed
[2] PubMed
[3] Springer Nature
[4] MDPI
[5] PubMed Central
[6] PubMed
[7] PubMed