Does Eating at Night Cause Weight Gain?

I’ve been asked this many times by my clients, so it’s not surprising that people believe that the time of day calories are consumed affects weight gain and loss. I remember my grandmother telling me that the diet advice she was given was to eat breakfast like a king, lunch like a prince, and dinner like a pauper. Today, you’ll find that experts are divided on this debate about eating at night. Generally speaking, it is the quantity of calories eaten, not the time of day, which has the greatest impact on weight. The leading weight loss company in the world, Weight Watchers, holds this point of view, as well.

What’s more important than avoiding eating after dinner is distributing your calories throughout the day to keep the metabolism up. Ideally, you want to strive to eat every three to five hours. Some people practice grazing, a lifestyle where they eat tiny amounts all day long. They do the same at mealtime, seeming to just nibble at their food. While this is a very effective weight control technique for some people, think twice before adopting it if it’s not your natural style. It can be very easy to overeat and hard to break the habit of eating regular meals.

I’ve been a snacker my whole life. I lost weight eating six times a day, but I carefully monitored everything I ate. The meals were on the light side, and my snacks were 100 - 150 calories each. Whatever your approach, it’s important to keep the calories consumed at night down, so your body can get the rest it needs without having to process a heavy meal.

Myth Busted – If You’re Not Hungry, Don’t Eat

On the surface, this seems like very sensible advice. We should only eat if we’re hungry. In fact, why would people eat if they weren’t hungry? From years of experience working with overweight people, I can tell you that there are many reasons people eat besides hunger. People eat to relieve stress; some find food takes their mind off of the stressor while others choose crunchy foods to expend the energy that is building up. Sometimes people eat to be social and “fit in,” perhaps succumbing to peer pressure. Workplaces are filled with opportunities to feel the need to eat. Often people eat to decrease fatigue, when what they really lack is enough sleep. Some folks eat out of habit, because it’s mealtime or because they always eat when they come home from school. A major reason people eat too much is because it tastes good. This common restaurant behavior brings up one last reason diners overeat – because they paid for it. For most people, eating is an enjoyable activity, and people generally seek to have more pleasure in their lives.

These are not good reasons to eat when we’re not hungry, it’s true. However, there are times when a person should eat even if she or he is not hungry, such as upon rising in the morning or after several daytime hours without eating. There are various reasons people sometimes don’t feel hunger, including having a history of calorie restricted dieting or being physically ill. Depression, grief, and anxiety are other common reasons hunger is diminished. Some sedentary people rarely feel tremendously hungry. It’s important to pay attention to your body signals and emotional states. Going more than four hours during the day without eating causes the metabolism to drop as the body strives to preserve energy. It also may result in overeating later in the day.

We need a consistent source of energy (calories) to function well during the day, so don’t let a lack of hunger have you go all day without eating. This is true even if you’re trying to lose weight. Have convenient, healthy snacks on hand, such as nuts, fruit, yogurt, low fat granola bars or popcorn, whole wheat crackers or pretzels, or cheese sticks. You wouldn’t let your car run out of fuel; don’t let your irreplaceable vehicle run out either.