What Happens to Your Body When You Eat a Late-Night Snack Every Day

If you eat late-night snacks regularly, you may be curious about their impact on your body.

A 2021 International Food Information Council survey revealed that 60% of U.S. adults admit to snacking after 8 p.m. Furthermore, a 2023 review published in Nutrients found that snacks comprise 20% of Americans’ total energy intake.

Needless to say, we love our snacks. And who can blame us? When the urge to snack hits, the cravings are tough to resist. But what does late-night snacking do to your body?

In this article, we’ll cover the benefits of late-night snacks, their potential downsides, and how they affect your body.

We’ll also guide you through choosing healthy late-night snacks and offer valuable tips on what to look for and what to limit to maintain healthy eating habits.

What Is Late-Night Snacking?

Late-night snacking is when you consume food or beverages after dinner or close to bedtime. These cravings are tough to curb and can be attributed to various reasons, including hunger, habit, boredom, stress or simply unwinding before bedtime.

After all, everyone can relate to the pleasure of eating delicious snacks while bingeing your favorite Netflix show. However, the quality, amount and timing of your evening snacks can significantly impact your health.

Health Benefits of Late Snacking

May Nourish Your Body

Late-night snacking can be an opportunity to provide your body with essential nutrients it may have missed during the day. Choose nutritious and minimally processed foods like Greek yogurt with berries, whole-grain crackers with hummus, or a small portion of mixed nuts to satisfy hunger and nourish your body with vitamins and minerals.

Having high-protein foods before bed can also support rest and recovery if you’re active. Kelsey Kunik, RDN, a registered dietitian nutritionist at Graciously Nourished, tells EatingWell, “Snacking at night can help provide your body with nutrients, like protein, needed for muscle recovery while you sleep.”

Can Help You Sleep Better

A light, balanced snack before bed can promote better sleep by preventing hunger-induced awakenings at night. Research, such as a 2018 article in the ACSM’s Health and Fitness Journal, shows that having a light, healthy snack before bed is a good sleep hygiene practice if you’re hungry at night.

Additionally, opt for snacks that contain tryptophan-rich foods like nuts or seeds, which can help your body produce the sleep-regulating neurotransmitters serotonin and melatonin, per a 2018 article in the International Journal of Tryptophan Research.

“Use late-snacking as an opportunity to eat foods that can help you sleep. Foods rich in magnesium or melatonin can help you get a better night’s rest,” says Kunik.

May Help Regulate Your Blood Sugar

According to a 2022 meta-review published in the American Journal of Clinical Nutrition, late-night snacking on high-protein foods may help maintain stable blood glucose levels throughout the night. This is good news for those with diabetes or concerns about blood sugar levels.

To prevent blood sugar spikes and crashes, eat snacks that combine protein, healthy fats and complex carbohydrates, such as an apple with nut butter or whole-grain toast with avocado. “Eating a balanced snack at night could help with better blood sugar control for people with diabetes,” says Kunik.

Potential Downsides

May Cause Digestive Issues

According to a 2020 article in the International Journal of Environmental Research and Public Health, late-night snacking could lead to gastrointestinal discomfort during sleep, such as indigestion, heartburn and acid reflux.

Avoid heavy or spicy foods and opt for light and easily digestible snacks that won’t tax your digestive system, like a small bowl of oatmeal or a banana with almond butter.

Kunik tells us, “Late snacking could worsen acid reflux. People who have acid reflux and eat just before laying down may wake up during the night with uncomfortable symptoms.”

May Cause You to Wake Frequently During Sleep

According to the 2020 article, consuming large or sugary snacks close to bedtime can disrupt your sleep pattern, causing you to wake often throughout the night. Avoid caffeine, sugary treats and high-calorie snacks before bed to enhance sleep quality.

“Eating foods that take a lot of effort to digest, like high-fat foods or heavy meals, could cause you to wake up frequently throughout the night,” says Kunik.

May Lead to Weight Gain

Let’s face it, late-night snacking is often done out of boredom or habit. This means you’re likely eating too many calories, potentially causing unintentional weight gain. “Late snacking could lead to weight gain,” cautions Kunik. “If late-night snacking is often done while watching TV or another activity where you’re not mindful of what you’re eating, it can be easy to eat more food than you otherwise would.”

The Best Late-Night Snacks and How to Choose Healthy Options

Next time you’re standing at the pantry deciding what to snack on, choose nutritious foods low in added sugars and saturated fats. Focus on snacks rich in protein and fiber to promote satiety and prevent overeating.

Nutritious choices for late-night snacking include Greek yogurt with berries, a small handful of nuts, whole-grain crackers with hummus, or a slice of whole-grain toast with almond butter.

Limit ultra-processed and sugary snacks, and eat in moderation. It’s tricky, but try to satisfy your hunger without overloading your body with excess calories before bed.

“The best late-night snack options are light and easy to digest. These include sleep-promoting foods like cherries, nuts, bananas or low-fat dairy,” says Kunik.

What to Look For

Look for nutrient-dense foods that satisfy your hunger without causing discomfort. They should offer a good balance of protein, healthy fats and complex carbohydrates to provide sustained energy and keep you feeling full. Eat ultra-processed and sugary snacks in moderation.

“For a late-night snack, avoid greasy foods that can lead to stomach upset, as well as high-sugar foods or foods and drinks with caffeine, which can make it difficult to fall asleep,” says Kunik. “Pairing a complex carbohydrate with protein or a healthy fat can help you feel full while also helping you reap the benefits of muscle repair and even blood sugars while you sleep.”

What to Limit

Limit highly processed and sugary snacks, as they can lead to energy crashes and disrupt your sleep cycle. Also, avoid caffeine and alcohol, which can interfere with your sleep quality.

Late-night snacking on large, heavy meals should also be limited, as it can cause discomfort and digestive issues. “Choosing nutrient-dense snacks and being mindful of your fullness and satisfaction while you eat can help you sleep comfortably full and satisfied without overeating,” says Kunik.

Frequently Asked Questions

Can I have a late-night snack if I’m on a diet?

Yes, but ensure you choose nutrient-dense options that won’t exceed your daily calorie needs. Focus on snacks that provide protein, fiber and healthy fats to keep you satiated and prevent overeating.

What are healthy late-night snacks for weight loss?

Healthy late-night snacks for weight loss include Greek yogurt with berries, a small handful of nuts, sliced veggies with hummus, or a piece of fruit. These options offer a balance of nutrients and won’t derail your weight-loss efforts.

How to make healthy late-night snacks?

Keep your home stocked with whole, unprocessed foods that are easy to prepare. Have pre-cut veggies and fruits in the fridge, make your own trail mix with nuts and seeds, or prepare a batch of homemade energy balls using nutritious ingredients.

Do late snacks cause weight gain?

Late-night snacks can contribute to weight gain if they’re high in calories, added sugar and saturated fats. Mindless snacking while watching TV or before bed can cause excess calorie intake, which may lead to weight gain over time.

Is it OK to eat before bed?

Eating before bed can be OK, but making healthy choices is essential. Enjoy light, easily digestible snacks that won’t affect your sleep or add extra calories. Avoid heavy, greasy or spicy foods before bedtime to promote better rest and digestion.

The Bottom Line

Late-night snacking’s impact on your body varies depending on the quality and quantity of food you eat. While certain foods can disrupt sleep and cause digestive issues, some may boost sleep quality.

Avoid eating large, heavy meals or ultra-processed foods high in calories and added sugar before bed. If you’re hungry at night, eat moderate amounts of nutritious whole foods containing nutrients that support healthy sleep and satiate you.