Chronotype and disordered eating indicators: A systematic review and meta-analysis
Abstract
Chronotype, a person's natural timing for sleep and daily activity, has been increasingly linked to eating patterns and obesity risk. However, evidence regarding its association with disordered eating indicators remains inconsistent. We systematically reviewed and meta-analyzed the association between chronotype and disordered eating indicators in the general population. Fifty-one observational studies were included, with a mean age and BMI of participants ranging from 13.3 to 52.6 years and 19.83-40.60 kg/m2. Later chronotype was associated with higher scores in binge-eating (r: 0.39; 95% CI, 0.35, 0.43; p 2 = 94.38%, p 2 = 75.61%, p 2 = 78.99%, p 2 = 41.59%, p = 0.060), uncontrolled eating (r: 0.13; 95% CI, 0.08, 0.18; p 2 = 72.84%, p 2 = 69.97%, p = 0.010). Conversely, later chronotype was associated with lower restrained eating (r: -0.11; 95% CI, -0.15, -0.07; p 2 = 0.00%, p = 0.440). Later chronotype is consistently linked to a spectrum of disordered eating indicators among general populations. These outcomes highlight an association between chronotype and disordered eating indicators; however, more longitudinal and randomized controlled trials are needed to establish causality and underlying mechanisms.
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Evidence Hub reads this as a meta-analysis, done in people. Its evidence level is 1 of 5 (Highest · pooled evidence). Pooled evidence from several studies sits at the top of the evidence pyramid.
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