An analysis reveals a 47% increase in bulimia cases worldwide over three decades, with teenagers and young adults experiencing the heaviest burden amid digital culture’s growing influence.
Bulimia nervosa is affecting far more people worldwide than it did three decades ago, with the steepest rise concentrated among teenagers and young adults, according to an analysis published in Current Psychology. The disorder, which involves cycles of binge eating followed by behaviours such as vomiting or laxative use, can damage physical health, mental wellbeing and everyday functioning.
The study drew on Global Burden of Disease 2021 data from 204 countries and five levels of the Social Development Index. It found that new cases rose from 5,595,034 in 1990 to 8,227,657 in 2021, an increase of 47.24%. Over the same period, the age-standardised incidence rate climbed from 91.95 to 107.81 per 100,000 people, while age-standardised disability-adjusted life years rose from 27.52 to 33.05 per 100,000. Researchers said the burden remains heaviest in the 15-to-24 age group, a life stage marked by identity formation, academic pressure and social comparison.
The analysis also found important regional differences. High Social Development Index countries recorded the highest rates, while middle-index regions saw the fastest growth in standardised incidence. Low-index areas had the largest increase in raw case numbers, rising by 161.75%, a pattern the researchers linked to population growth and weaker mental health systems. Bayesian modelling suggests the trend is likely to continue, particularly among 15-to-19-year-olds and 20-to-24-year-olds.
The findings fit a wider pattern of eating and body-image concerns that clinicians say are increasingly shaped by digital culture. A separate international review reported by Psychreg found strong links between heavy social media use and symptoms of orthorexia nervosa, an obsessive focus on eating “clean” foods, and muscle dysmorphia, a condition tied to fixation on being more muscular. That review, published in European Eating Disorders Review, analysed data from more than 17,000 participants and found that repeated exposure to fitness and idealised body content was associated with body dissatisfaction, compulsive exercise and distress when workouts were missed.
Researchers behind the bulimia analysis said the rise likely reflects a mix of social media pressure, weight stigma, access to ultra-processed foods and the clash between traditional and Western beauty ideals in rapidly urbanising societies. They also warned that shame continues to keep many people from seeking help, while diagnostic tools have historically been better suited to female presentations, potentially obscuring the burden among males. The study’s wider message is that bulimia nervosa is not a matter of willpower, but a growing public health problem that will require earlier recognition in families and schools, more mental health education and culturally sensitive care, especially in lower-resource settings.
Disclaimer: This content is for informational purposes only and is not intended to be a substitute for professional medical judgment, advice, diagnosis, or treatment.
