There are plenty of reasons we eat at night. These can include eating after getting home from a late-night shift or simply getting a midnight craving for something sweet. But, there has been discourse about the health effects of eating late.

Many will argue that reducing late-night eating can improve weight loss and overall health. Avoiding snacking before sleeping can also help. There’s undoubtedly some truth to these claims. But, understanding late-night eating habits is more complex than you might think.

Eating During the Day vs. Night, What’s the Difference?

Consuming high-energy food at night has been a suspected contributor to obesity for many years, according to The National Institutes of Health (NIH). Some believe that this is because your metabolism is slower at night.

This, in turn, causes the energy you get from food to go unused and leads to weight gain. However, it’s not that simple.

The human body and all its functions are in tune with day and night cycles. This is your circadian rhythm.

In many cases, the body’s daily processes and fluctuations, such as the metabolization of food, have become aligned with routine environmental factors. One example of these factors is the time of day.

Because our bodies are so in tune with our environment, disrupting your circadian rhythm contributes to obesity and cardiometabolic disorders.

We can see one example of this in insulin levels. Insulin sensitivity is usually greater in the morning. As a result, eating larger meals earlier allows your body to process them better.

On the other hand, melatonin released at night reduces your body’s insulin release. This means your body will not process food as well. If this persists, you may become more susceptible to obesity and other cardiometabolic diseases.

Is Eating at Night Always Bad?

The short answer is no. Eating at night won’t always make you obese or endanger your overall health.

Your body may process food and energy more slowly at night. However, there isn’t enough data to guarantee that eating at night will lead to weight gain.

Eating at night can contribute to weight gain. But plenty of other factors can contribute to the link between late-night eating and weight gain.

One of these is the quality of the food you’re eating. Usually, when we talk about avoiding eating at night, we think about unhealthy snacking or large meals right before bedtime.

Many late-night delicacies, such as vending machines, pizza delivery, convenience store snacks, and more are all high in fat and sugar. Instead, consider stocking up on healthier snacks.

Data from NIH suggests that eating small, nutrient-dense, low-energy foods can offer health benefits. It’s not just when you eat that matters but what you eat that will impact your health going forward.

MIT Health also suggests that changing “late-night eating” into a “midnight mini-meal” can benefit you. Instead of eating whatever sugary and fatty snacks you find lying around, plan out potential healthier food options for later at night. This way, you will have higher-protein, satisfying snacks ready.

Some late-night meal ideas from MIT Health include:

• Apple slices or celery sticks with peanut butter.
• Half of a turkey sandwich.
• Low-fat/sodium frozen dinners.
• Small tortillas filled with low-fat cheese and salsa.
• Whole grain cereal with fat-free or 1% low-fat milk.
• Whole wheat pita bread with hummus.
• Yogurt mixed with high-fiber cereal.

Why Am I Hungry at Night?

One thing you may ask yourself when you’re eating late often is why you’re hungry. If you start to get a midnight craving, consider reflecting on what you’ve already eaten today.

If you’ve already had larger meals throughout the day and still feel hungry, you may not actually need food.

Two potential causes for hunger at night are binge eating disorder and emotional eating, cites NIH.

Binge eating disorder is when you eat a large amount of food quickly, feeling like you can’t control what or how much you’re eating. Typically, food associated with binge eating is unhealthy junk food.

Binge eating can happen for people with an average body weight. The condition is more common for people who have obesity and is common among people with type 1 and type 2 diabetes.

Emotional eating is when negative emotions such as stress, depression, anxiety, and more lead to an increase in food intake. Emotional eating is often a coping mechanism for negative emotions and can lead to obesity.

Both binge eating disorder and emotional eating combined with irregular eating habits can cause you to get hungrier at night.

If you or a loved one is experiencing binge eating disorder or emotional eating, contact your health care provider for assistance.

When Should I Eat?

At the end of the day, very few studies confirm that any particular mealtime schedule is best. The time that you eat can affect your weight and overall health, but there are also other factors to consider. Examples of these include the quantity and quality of the food you eat.

Still, there are undoubtedly good eating habits based on eating at certain times that can improve your overall health. NIH recommends that you:

• Avoid eating when your melatonin levels are high, such as late at night or early in the morning.
• Consume more calories earlier in the day so your body can process them better throughout the day.
• Eat consistently during a period of less than 12 hours every day.

What Should I Do?

The best thing you can do is learn more about your personal needs for weight loss and keeping a healthy circadian rhythm. Every person’s body is different and has different needs when it comes to eating.

Try listening to your body. If you feel your body is saying you need something to eat at night, go for it. Try finding a healthy snack that will satisfy you before bed.

If you’re still unsure what’s best for you, contact your primary care doctor or a nutritionist. Explain your questions and concerns to them, and they’ll help you start on a better dietary health plan.