Late dinner timing disrupts sleep and metabolism

Research in chrononutrition indicates that the hour of the evening meal, rather than its carbohydrate content, strongly influences how the body processes food. Eating shortly before bed interferes with the rise of melatonin, reduces glucose tolerance and lowers resting energy expenditure, leading to heavier digestion, nighttime reflux, fragmented sleep and altered morning appetite. Common signs include a feeling of heaviness when lying down, acid reflux, frequent awakenings, and extreme hunger or loss of appetite in the morning.

To mitigate these effects, experts advise finishing the last meal two to three hours before bedtime, opting for lighter, easily digested foods if a later dinner is unavoidable, and adjusting habits such as preparing meals earlier or reducing snacking driven by fatigue or screen time. Individuals with specific health conditions, such as diabetes or shift‑work schedules, should tailor these recommendations with professional guidance.