When it comes to dinner, many of us focus on what we eat, aiming for healthy and delicious food. But we often don't think about when we eat it, squeezing dinner in whenever our busy schedules allow. However, a growing amount of research suggests that when you eat can be just as important for your health as what you eat. And it seems that eating dinner earlier might be the way to go. What's the Best Time for Dinner? Scientists haven't found one single "perfect" dinner time, but it's generally best to avoid eating late for your metabolism. Try to finish dinner at least two hours before you go to bed, and ideally even longer. According to a 2024 study published in the JAMA Network Open, good goal is to eat dinner sometime between 5 p.m. and 7 p.m. Of course, life happens, and sometimes you'll have to eat later. If it's just occasionally, don't worry too much. Just try not to eat a very large meal right before bed. In fact, research suggests that dinner shouldn't be your biggest meal of the day, which is different from what many Americans are used to. Instead, try to eat most of your calories earlier in the day, around when you wake up or in the middle of the day. Why Does When You Eat Dinner Matter? Our bodies have internal "clocks" that manage how we function throughout the day. This means that the exact same meal can affect your body differently depending on the time you eat it. For instance, one study found that when healthy young adults ate the same dinner at 10 p.m. instead of 6 p.m., their blood sugar levels went higher and their bodies processed fat less effectively. Late dinners can have this impact even if you're not eating right before bed. One reason for this could be melatonin, a hormone your body releases at night to help you sleep. As melatonin levels rise, it seems to make it harder for your body to control blood sugar, leading to bigger and longer-lasting spikes after a late meal. Research also shows that eating dinner late can make you hungrier, cause your body to burn fewer calories, and even lead to changes in your body that promote fat gain. How Late Dinners Affect Your Health While many studies on meal timing are done in controlled lab settings, the findings suggest that regularly eating dinner late could increase your risk for health problems like type 2 diabetes and obesity. Many studies have already shown this connection. On the other hand, eating more of your calories earlier in the day seems to help with weight loss and improve signs of good metabolic health. It's not just about metabolism either. Other research suggests that people who stop eating after 6 p.m. tend to get more sleep than those who eat until midnight. There's even a serious study from 2024 that links late eating to a higher risk of death. So, the general advice is clear: for most people, it's best to limit how much food you eat during the nighttime hours. Tips for Eating Dinner Earlier If you're used to eating late, changing your routine can be tough. To make the switch easier, start by making changes earlier in your day. If you often skip breakfast and grab a quick, small lunch, you'll likely be very hungry by evening. So, make sure you eat good, hearty meals earlier in the day that include plenty of protein, fiber, and healthy fats. This will help you feel less hungry at night. Some people also find it helpful to set a specific "cut-off time" after which they stop eating, rather than just vaguely aiming for an earlier dinner. If you try this, it's okay to start small. Begin by closing the kitchen just 30 minutes before bedtime, then extend it to an hour, and so on. The key is to start where you are and build up gradually.