Eating disorders significantly increase the risk of organ failure, mental health problems, and early death, with dangers persisting long after the initial diagnosis.
A recent study highlights that risks for kidney and liver failure, fractures, diabetes, heart failure, and death peak within the first year but remain elevated for 5 to 10 years.
Psychiatric illnesses such as depression, self-harm, and suicide risk also dramatically increase, underscoring the need for early diagnosis, ongoing care, and a team-based treatment approach.
Eating disorders impact nearly every major body system. Malnutrition, weight fluctuations, and behaviors like purging cause lasting damage to the heart, kidneys, liver, and bones. At the same time, many patients suffer from mental health vulnerabilities like anxiety and depression that persist even after eating disorder symptoms improve.
The study, published in BMJ Medicine, tracked over 24,000 patients diagnosed between 1998 and 2018, most of whom were young women, comparing them to nearly half a million controls without eating disorders.
Within the first year of diagnosis, individuals with eating disorders are:
- Six times more likely to develop kidney failure
- Nearly seven times more likely to get liver disease
- Six times more prone to osteoporosis (bone loss)
- Twice as likely to suffer heart failure
- Three times more likely to develop diabetes
Mental health risks in the same period include a sevenfold increase in depression and a ninefold increase in self-harm risk. Suicide risk is almost 14 times higher in the first year and remains elevated a decade later. Premature death risk is more than fourfold higher initially, with unnatural deaths fivefold higher.
Experts emphasize the importance of treating eating disorders as chronic conditions. This involves ongoing physical health monitoring—heart, kidney, liver, and bone health checks—as well as regular mental health screenings. Coordinated care between general practitioners and specialists is critical to prevent patients from falling through the cracks.
Rapid re-referral and intensified support during high-risk times, especially the first year after diagnosis, are also essential. Medical training must improve awareness and education about eating disorders to better equip healthcare professionals.
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