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Prospective Association Between Weight Variability and Subsequent Long-Term Weight Loss in the CALERIE Study
Journal article   Open access   Peer reviewed

Prospective Association Between Weight Variability and Subsequent Long-Term Weight Loss in the CALERIE Study

Branislav Jovanovic, Simar Singh, Fengqing Zhang, Edward A Williams, Susan B Roberts and Michael R Lowe
Obesity (Silver Spring, Md.), v 34(7), pp 1409-1419
Jul 2026
DOI: https://doi.org/10.1002/oby.70235
PMID: 42316515
Featured in Collection :   Research Supported by Drexel Libraries' OA Programs
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https://doi.org/10.1002/oby.70235View
Published, Version of Record (VoR) Open Access via Drexel Libraries Read and Publish Program 2026 Open CC BY V4.0

Abstract

weight loss weight variability weight fluctuation weight change weight maintenance
Higher short-term weight variability (WV) predicts greater subsequent weight gain in weight-stable adults and toddlers and lower long-term weight loss among adults with overweight or obesity who previously lost weight. We extend prior work by examining the impact of naturally occurring WV on subsequent weight loss (weight at month 3 minus later weights) in individuals without obesity enrolled in the Comprehensive Assessment of the Long-term Effects of Reducing Intake of Energy (CALERIE) study. Participants (N = 143) followed a 25% caloric restriction diet over 2 years. WV was calculated as the root-mean-squared-error of individuals' weights over the first 12 weeks. Multilevel models examined WV's prediction of subsequent weight loss at 6, 12, 18, and 24 months relative to month 3, adjusting for baseline BMI, 12-week weight change, and demographic variables. Sensitivity analyses further included time-varying adherence and eating behaviors (disinhibition, restraint, craving). Higher WV was associated with less subsequent weight loss at 6 months (B = -0.38, 95% CI [-0.63, -0.13], β = -0.16, p = 0.003). The interaction between time and WV was not significant; analyses suggested the association extends through year 1. Short-term WV predicted lower subsequent weight loss in adults without obesity. Once its biobehavioral mechanisms are understood, WV might provide insight into humans' innate capacity for long-term weight stability and inform future mechanistic research and clinical interventions. ClinicalTrials.gov registration: NCT00427193.

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Collaboration types
Domestic collaboration
Web of Science research areas
Endocrinology & Metabolism
Nutrition & Dietetics
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