Late-night hunger is driven by circadian rhythms and hormonal fluctuations
the verdict
SUPPORTED
the evidence backs this
confidence 86/100
The scientific literature robustly supports the role of circadian rhythms and hormonal fluctuations in driving late-night hunger and metabolic responses.
Evidence for · 7
Timing of daily calorie loading affects appetite and hunger responses without changes in energy metabolism in healthy subjects with obesity.
2022 · cited by 64
Paper 0 demonstrates that morning-loaded diets result in significantly lower hunger levels compared to evening-loaded diets.
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More for · 6
Diurnal variations of brown fat thermogenesis and fat oxidation in humans.
2021 · cited by 23
Paper 1 finds diurnal variations in brown adipose tissue thermogenesis and fat oxidation, peaking in the morning.
Unacylated ghrelin, leptin, and appetite display diurnal rhythmicity in lean adults.
2021 · cited by 14
Paper 2 shows that subjective hunger and appetite display clear diurnal rhythms, peaking in the evening.
Circadian nutrition and obesity: timing as a nutritional strategy.
2025 · cited by 8
Paper 4 reviews how aligning food intake with circadian rhythms modulates energy balance and hormonal regulation.
Rest phase snacking increases energy resorption and weight gain in male mice.
2023 · cited by 7
Paper 5 indicates that rest-phase snacking disrupts metabolic rhythms and increases weight gain in animal models.
Interaction Between Early Meals (Big-Breakfast Diet), Clock Gene mRNA Expression, and Gut Microbiome to Regulate Weight Loss and Glucose Metabolism in Obesity and Type 2 Diabetes.
2024 · cited by 5
Paper 7 links circadian clock genes and meal timing to metabolic regulation and hunger responses.
Dysregulation of the orexin-leptin-ghrelin axis and its associations with chronotype and sleep disturbances in drug-naïve children with ADHD.
2025 · cited by 2
Paper 10 connects evening chronotypes and circadian misalignment to altered levels of appetite-regulating hormones like ghrelin and leptin.