Why Experts Say Dinner Should Be Early: Better Sleep, Weight Control, and Digestion
Finding the perfect time to eat dinner can be tricky with busy work schedules, commutes, and family demands. However, dietitians and doctors agree there is an ideal time window that benefits your health.
Experts say eating dinner between 5 p.m. and 7 p.m. is best when possible. This timing allows your body enough time to digest food before bedtime, which can improve sleep quality and keep blood sugar levels stable.
Michelle Routhenstein, a dietitian and certified diabetes educator, advises eating two to three hours before going to bed. This helps digestion and avoids high blood sugar at night, which can disrupt sleep. Gretchen Zimmermann, another nutrition expert, agrees and adds that our digestive system slows down naturally at night, so eating too late can cause discomfort like bloating or heartburn.
Eating too early, however, might leave you hungry at bedtime and disturb your sleep. If your schedule makes it hard to eat within this window, it’s better to have a lighter meal and avoid lying down immediately afterward.
Eating earlier may also help with weight management. Studies show that people who eat dinner earlier burn more calories and have better metabolic health. For example, a study in Cell Metabolism found people eating at 5 p.m. burned about 60 more calories a day than those eating later. Another study from NYU Langone suggested earlier dinners improve metabolism, which supports weight loss.
Experts also point out other benefits of eating dinner earlier:
• Better sleep: Eating right before bed can reduce sleep quality, while eating earlier supports your natural body clock.
• Prevents heartburn: Those with conditions like acid reflux need to wait at least three hours before lying down after eating.
• Improved blood sugar: Eating earlier helps keep blood sugar lower overnight, which is important to avoid long-term health problems.
When choosing what to eat for dinner, experts recommend a balanced meal rich in protein, healthy fats, fiber, vitamins, and minerals. The Mediterranean diet—with fruits, vegetables, whole grains, nuts, olive oil, and lean proteins is a great example.
If you get hungry later in the evening, opt for light snacks like chia pudding, kiwi with walnuts, cherries, or yogurt with berries, as these may support digestion and promote good sleep. Avoid heavy, processed snacks, alcohol, and caffeine close to bedtime as they can disrupt digestion and rest.
Bottom line: Aim to eat dinner about two to three hours before going to bed. If needed, choose a light, healthy snack at least an hour before sleep to stay comfortable and support your health.