The Impact of Mind–Body Therapies on the Mental Health of Adults with Eating Disorders: A Meta-Analysis

Background: Eating disorders are among serious psychiatric conditions and are associated with an increased risk of mortality and significant psychological distress. Mind–body therapies are attracting increasing attention as complementary interventions aimed at improving psychological well-being. The aim of this meta-analysis is to examine the effects of mind–body therapies on psychological outcomes in adults diagnosed with an eating disorder or exhibiting clinically significant symptoms associated with it. Methods: Randomized controlled trials published between 2003 and 2026 were identified through a systematic search of the PubMed, CINAHL, Web of Science, Cochrane, and Scopus databases. Studies were included that involved participants aged 18 years and over who had received a diagnosis of an eating disorder according to standard diagnostic criteria (e.g., DSM-IV, DSM-IV-TR, DSM-5) or who exhibited clinically significant symptoms associated with an eating disorder. Mind–body interventions were compared with control conditions. Methodological quality was assessed using the Joanna Briggs Institute assessment tool. Statistical analyses were performed using Stata 16.0 software. Results: Nine randomized controlled trials involving a total of 688 participants were included in the meta-analysis. It was found that mind–body interventions significantly reduced levels of depression (Hedges’ g = −0.44, 95% CI: −0.67 to −0.20). Similarly, significant reductions were observed in levels of inadequate self (g = −0.51, 95% CI: −0.84 to −0.18) and self-hated (g = −0.56, 95% CI: −0.89 to −0.23). Although an effect in the direction of an increase was observed for self-compassion (g = 0.31, 95% CI: 0.07–0.54), this effect was not found to be statistically significant following the correction applied for multiple comparisons. In contrast, anxiety (g = −0.19, 95% CI: −0.39 to 0.02), stress (g = −0.48, 95% CI: −1.05 to 0.09), and self-esteem (g = 0.29, 95% CI: −0.16 to 0.73). Conclusions: Mind–body therapies are associated with improvements in certain psychological outcomes among adults with a diagnosis of an eating disorder or those exhibiting clinically significant symptoms. However, the current findings should be interpreted with caution, as the included studies largely relied on waiting-list or usual-care control groups.