Timing of Eating: From Body Clocks and Brain Signals to Human Eating Habits and Health Patterns

Chrono-nutrition is associated with improved metabolic health by aligning food intake with circadian rhythms.

• The circadian clock regulates daily biological rhythms, impacting physiology and behavior.
• External cues, such as light and food timing, sync the central circadian clock in the brain and metabolic rhythms in the body.
• Disruption of circadian rhythms can lead to negative metabolic outcomes, supported by both animal and human research.
• Aligning food intake with optimal periods of metabolic activity may enhance metabolic health.
• Eating patterns that distribute energy earlier in the day may improve glucose and lipid management, insulin sensitivity, and energy expenditure.
• Human studies indicate potential benefits of morning versus evening meal timing and interventions like time-restricted feeding.

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