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Updated: Jan 16, 2026

A Computer-Based Platform for Aiding Clinicians in Eating Disorder Analysis and Diagnosis
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A Systematic Review and Meta-Analytic Assessment of Unpredictability and Disordered Eating.

Tomás Cabeza de Baca1, Hannah T Fry1,2, Andrés M Treviño-Alvarez1,3

  • 1Obesity and Diabetes Clinical Research Section, Phoenix Epidemiology and Clinical Research Branch, National Institute of Diabetes and Digestive and Kidney Diseases, Phoenix, Arizona, USA.

Obesity Reviews : an Official Journal of the International Association for the Study of Obesity
|October 1, 2025
PubMed
Summary
This summary is machine-generated.

Perceived unpredictability is linked to disordered eating behaviors. This systematic review confirms a small but significant association, emphasizing the need for better assessment tools to understand its health impacts.

Keywords:
appetitive behaviorschildhooddevelopmentlife history strategieslife history theorymaladaptive eating behaviorsmeta‐analysisobesity

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Area of Science:

  • Psychology
  • Public Health
  • Nutrition Science

Background:

  • Perceived unpredictability in life experiences, food access, or beliefs may influence disordered eating.
  • Previous research on unpredictability and disordered eating has yielded inconsistent results.
  • Understanding this relationship is crucial for addressing weight gain and future health concerns.

Purpose of the Study:

  • To systematically review and meta-analyze the association between perceived unpredictability and disordered eating behaviors.
  • To examine subjective and objective measures of disordered eating in adults and children.
  • To identify potential moderators influencing the unpredictability-disordered eating link.

Main Methods:

  • A systematic review was conducted in July 2023, searching six major academic databases.
  • Twenty relevant research articles were identified, with data from 15 studies (n=9983) included in the meta-analysis.
  • A four-level random effects meta-analysis was performed on 83 correlation coefficients.

Main Results:

  • A small but statistically significant positive association was found between unpredictability and disordered eating (r=0.12).
  • A high degree of heterogeneity was observed (I²=86.72%), indicating significant variability across studies.
  • Country of origin, disordered eating measurement, unpredictability chronicity, and study demographics (percentage of women) were significant moderators.

Conclusions:

  • Perceived unpredictability is a significant correlate of disordered eating behaviors.
  • The heterogeneity suggests the need for more refined measurement tools for both unpredictability and disordered eating.
  • Further research with improved methodologies is essential to fully elucidate the impact of unpredictability on eating behaviors and health outcomes.