Snacking: What Published Guidance Supports

Key takeaways

• Added sugars limit: under 10 percent of daily calories, about 50 g on a 2,000-calorie diet
• Reading the label: 5 percent Daily Value or less is low; 20 percent or more is high
• Most useful single change: Choose snacks with protein or fiber, which actually fill you up.
• Commonest mistake: Grazing continuously rather than eating defined snacks.
• See a doctor if any of the signs under "When to speak to a doctor" below apply to you.

What it is

Eating between meals, and what makes a snack useful rather than simply extra. It sits within Healthy Recipes. What follows are the published numbers, not the ones that get passed around.

The numbers, in one place

What helps

You do not have to do all of it, and you do not have to start today.

• Choose snacks with protein or fiber, which actually fill you up
• Keep fruit, nuts and yogurt visible and cookies out of sight
• Decide on the snack before you are hungry
• Use the percent Daily Value when comparing packages

What to avoid

These come up often, and several of them sound like good ideas.

• Grazing continuously rather than eating defined snacks
• Drinking calories, which satisfy less than the same energy eaten
• Granola or cereal bars assumed to be healthy without checking the label

In depth

Snacks are a large part of the American diet, and they can either help or hinder your nutrition. Most US adults snack at least once a day, and for many, snacks provide a sizable share of daily calories. The problem is not snacking itself but what is eaten: chips, cookies, candy, pastries and sugary drinks supply much of the added sugars, sodium and saturated fat in the US diet, while fruit, vegetables, nuts, yogurt and whole grains are the snacks that help fill nutrient gaps.

A useful snack keeps you comfortable until your next meal and adds nutrients you might otherwise miss. Protein and fiber are the key features: both slow digestion and help you feel full. Snacks made mostly of refined carbohydrates and sugar are digested quickly, may lead to a quick rise and fall in blood sugar, and tend to leave you hungry again soon. That is why an apple with peanut butter often satisfies longer than a granola bar with similar calories.

Drinks deserve special attention. Sugar-sweetened beverages, including soda, fruit drinks, sweetened coffee and tea, and sports and energy drinks, are the largest source of added sugars in the US diet. Liquid calories do not seem to reduce appetite as much as the same energy eaten as food, so they add calories without filling you up. Swapping them for water, unsweetened tea or coffee, sparkling water or milk is one of the most effective changes you can make.

Signs and symptoms

• Grazing throughout the day without clear meals or snacks
• Snacking mainly in response to boredom, stress or screen time rather than hunger
• Feeling hungry again soon after a snack
• Regularly drinking soda, sweetened coffee or energy drinks
• Rarely reaching daily fruit, vegetable or dairy goals

Causes and risk factors

• Long gaps between meals, which leave you very hungry
• Easy access to packaged snack foods at home, work or school
• Eating while distracted by screens, which makes it harder to notice fullness
• Stress, tiredness and poor sleep, which are linked to increased appetite
• Marketing that presents some snacks as healthier than they are
• Habit, such as always snacking at a certain time or place

How it is checked

To assess your snacking, keep a simple log for a few days: what you ate, when, how hungry you were and what prompted it. Patterns often appear quickly, such as afternoon snacking at work, evening snacking in front of the television, or drinks adding more calories than you realized. This helps you decide which snacks to change and which are serving you well.

Use the Nutrition Facts label to compare packaged snacks. Check the serving size first, since many packages contain more than one, then look at the percent Daily Value for added sugars, sodium and saturated fat, and at fiber and protein. If constant hunger comes with thirst, frequent urination or unexplained weight loss, see your doctor, who may check your blood sugar.

Treatment and support options

Pair protein with fiber

Combine a protein source with a fiber source for a snack that holds you. Examples include apple slices with peanut butter, carrots and hummus, plain yogurt with berries, whole-grain crackers with cheese, a hard-boiled egg with cherry tomatoes, or a small handful of nuts with a piece of fruit. These cost little and take minutes to prepare. Keep portions modest so the snack does not become a meal.

Plan snacks like meals

Decide in advance what and when you will snack, rather than reacting to hunger or cravings. Pack snacks for work or school, and portion large bags into smaller containers at home. A planned mid-afternoon snack can prevent arriving home starving and overeating before dinner. Eat snacks at a table, away from screens, so you notice when you are satisfied. Structure makes it easier.

Change your environment

What you see and can reach easily shapes what you eat. Keep washed fruit on the counter and cut vegetables at the front of the fridge. Store cookies, chips and candy out of sight or buy them less often. At work, keep healthier snacks in your desk so the vending machine is not the default. Make the healthier choice the easy one.

Rethink drinks

Replace sugary drinks gradually: dilute juice with sparkling water, reduce the sugar in coffee step by step, or flavor water with citrus, cucumber or berries. Milk and fortified soy beverages provide protein and calcium. Keep a reusable water bottle with you, since thirst is sometimes mistaken for hunger. Diet drinks can help some people cut back while they adjust, though water is the best everyday choice.

Prevention

• Eat regular meals so you are not ravenous between them
• Plan snacks with protein or fiber, ideally both
• Make water your default drink
• Keep healthier snacks visible and less healthy ones out of sight
• Avoid eating directly from large packages
• Notice whether you are hungry or responding to boredom or stress

Day to day

Healthy snacking does not mean never eating treats. Enjoying a cookie or a handful of chips occasionally fits within a balanced diet. The aim is to make most snacks work for you. If evening snacking is a habit, try a cup of herbal tea, brushing your teeth after dinner, or a planned small snack, such as yogurt or fruit, rather than open-ended grazing.

Snacks can help in specific situations. Before exercise, a small carbohydrate-based snack can provide energy; afterward, a snack with protein supports recovery. People with small appetites, such as some older adults, may meet their needs better with regular snacks between smaller meals. Tailor snacking to your own hunger, schedule and health needs.

For specific groups

Children

Children have small stomachs and often need snacks between meals. Offer snacks at regular times and treat them as mini meals with fruit, vegetables, dairy or whole grains. Avoid using snacks as rewards, and limit sugary drinks. Whole nuts, popcorn and raw carrots can be choking risks for young children.

People with diabetes

Snacks with protein and fiber can help keep blood sugar steady. Some people on insulin or certain medicines need planned snacks to prevent low blood sugar. Your diabetes care team can tell you whether and when snacks are needed and how to count their carbohydrate.

Older adults

When appetite is small, nutrient-rich snacks such as yogurt, cheese, nut butter, eggs or smoothies help meet protein and calorie needs. This can support muscle strength and help prevent unintended weight loss. Ask your doctor or dietitian for advice if you are losing weight without trying.

Questions to ask your doctor

• Do I need planned snacks because of my diabetes medicines?
• Could my constant hunger be a sign of a medical problem?
• What snacks suit my blood pressure or cholesterol goals?
• How can I manage snacking driven by stress or emotions?
• Would a registered dietitian help me plan meals and snacks?

More questions, answered

Is it better to eat three meals or several small meals?

Either can be healthy. Research does not show that eating more often speeds metabolism. The best pattern is one that keeps you comfortably satisfied and makes healthy choices easier. Some people do better with snacks between meals; others prefer three larger meals.

Are nuts too high in calories to snack on?

Nuts are calorie dense but provide protein, fiber and healthy fats, and they are filling. A portion of about 1 oz (28 g), roughly a small handful, fits well in most eating patterns. Choose unsalted or lightly salted versions and avoid candied or chocolate-coated nuts as everyday snacks.

Are veggie chips or straws healthier than regular chips?

Often not by much. Many are made mainly from potato starch or flour with a small amount of vegetable powder and contain similar fat and sodium to regular chips. Compare the Nutrition Facts labels, and choose actual vegetables for a snack when you can.

Is popcorn a healthy snack?

Plain air-popped popcorn is a whole grain with fiber and few calories per cup. Movie theater popcorn and some microwave varieties can be high in saturated fat and sodium. Make your own and season with herbs, spices or a small amount of oil and salt.

Does eating late at night cause weight gain?

Total calories over time matter more than timing. However, late-night snacking often involves less healthy foods eaten while distracted, which can add extra calories. Eating close to bedtime can also worsen heartburn for some people. If you snack at night, choose something small and planned.

Are protein bars a good snack?

Some provide useful protein, but many are high in added sugars or sugar alcohols, which can cause digestive upset. Read the label for added sugars, fiber and protein. Whole-food snacks like yogurt, eggs or nuts often provide similar protein at lower cost.

Related topics

• Added Sugar: What the Evidence Actually Says (Nutrition)
• Reading the Nutrition Facts Label: What the Evidence Actually Says (Food Safety)
• Carbohydrates and Blood Glucose: Sorting the Evidence From the Noise (Diabetes)
• What the Guidance Really Says About Appetite and Satiety (Weight Management)

Where to go next

• Snacking: What to Do, in Order
• Snacking: Common Myths and What Guidelines Say
• Snacking — the reference entry
• Healthy Recipes: The Complete Guide
• The Evidence on Vegetarian and Vegan Diets, Without the Hype
• What the Guidance Really Says About Cooking for One

When to speak to a doctor

See your doctor if you are constantly hungry along with excessive thirst, frequent urination or unexplained weight loss, which can be signs of diabetes. If eating feels out of control or is followed by purging or other compensating behavior, talk to your doctor; if you are in crisis, call or text 988, and call 911 for fainting, chest pain or a medical emergency.

Where this comes from

• FDA — How to Understand and Use the Nutrition Facts Label
• Dietary Guidelines for Americans — Dietary Guidelines for Americans, 2020-2025
• USDA — FoodData Central

How this page was put together

Every figure, recommendation and warning above is taken from the guidance named in Where this comes from. Nothing on this page is inferred, summarized or generalized beyond what those bodies publish: where they give a number, it is their number, and where they are silent, so are we. Pages are rebuilt whenever the underlying record changes. Sign-off by a named clinician, where it has happened, is shown at the top of the page along with the date.

Medical disclaimer

This article is general information, not medical advice. It cannot account for your own history, medication or circumstances. Always speak to your doctor, pharmacist or another qualified health professional before making changes that affect your treatment, and never delay seeking medical advice because of something you have read here. In an emergency, call 911.