For people living with bulimia nervosa, finding a level of care that is intensive enough to be effective but practical enough to fit around daily life has long been a challenge. New research suggests that day-patient treatment, where people attend structured therapy during the day and return home each evening, can produce significant reductions in the core symptoms of the condition.
A meta-analysis published in the European Eating Disorders Review drew on data from 20 studies involving nearly 1,000 participants, the vast majority of whom were women. The research examined how eating disorder symptoms changed between admission and discharge in people with bulimia nervosa who underwent day-patient programmes across Europe and North America.
The findings were striking. Eating disorder psychopathology, which covers cognitive and emotional symptoms such as preoccupation with food, fear of weight gain, and body dissatisfaction, fell sharply over the course of treatment. The pooled effect size was large, and these gains remained stable at follow-up assessments conducted up to two years after discharge.
Binge eating frequency and purging frequency also fell substantially during treatment. Both showed large reductions from admission to discharge, and sensitivity analyses confirmed these results were robust rather than driven by outlying studies. The improvements seen in day-patient care were broadly comparable in magnitude to those reported for outpatient cognitive behavioural therapy, which is currently considered the first-line treatment for bulimia nervosa.
One finding with particular practical relevance was that body mass index did not change significantly during day-patient treatment. This matters because many people with bulimia nervosa are strongly fearful of gaining weight, and this fear can undermine their engagement with treatment. Evidence that structured eating in a supported environment does not automatically lead to weight gain may help to ease those concerns and improve adherence.
Day-patient programmes typically include individual and group psychotherapy, supervised meals, nutritional counselling, and medical monitoring. They offer a middle ground between full inpatient admission, which is costly and disruptive, and standard outpatient care, which can be insufficient for those with more complex presentations. The format also allows patients to practise coping strategies at home each evening, which may help skills transfer more effectively into everyday life.
The study does have limitations. Most of the included research used non-randomised, single-group designs rather than controlled trials, and follow-up data were only available for five studies. Heterogeneity across studies was substantial, reflecting differences in programme structure, patient characteristics, and treatment duration. The researchers also noted that most evidence came from Europe and North America, which may limit how widely the findings can be applied.
The authors suggest that day-patient treatment fits well within stepped-care models of eating disorder services, offering a structured option for those who need more support than weekly outpatient appointments can provide without requiring full hospitalisation.