I'm a pediatric dietitian. Here my top 5 tips to help kids stay hydrated during the school day.
If your child's bottle comes home full, you're not alone. These tricks will have them gulping H2O without a fuss.
Getting your kid to drink enough water during the school day (or any day, really) can feel like an uphill battle — but trust me, it's one of the most worthwhile habits you can help them build. Hydration for kids plays a role in nearly every function of their body: It regulates temperature, supports digestion and even helps keep their heart pumping. When kids are well hydrated, they often have more energy, better focus and a lower risk of feeling tired and irritable. That means enough water can make their day (and yours) run a whole lot smoother.
The trouble is, kids are more vulnerable to dehydration than adults. Their bodies lose water faster, their kidneys aren't fully developed yet and they often rely on adults for access to water — and reminders to drink. And it shows: According to one review in Pediatric Research, nearly 40% of kids and teens are dehydrated, and most don't drink enough water throughout the day.
Plus, school can make staying hydrated even more challenging. Between distractions from friends, busy schedules and fewer reminders to drink, kids often forget to reach for water. "Kids have faster metabolisms and lose more water through sweat and breathing, so they dehydrate more quickly — especially during active play or in warm classrooms," says Dr. Darria Long, a board-certified pediatric emergency medicine physician and clinical assistant professor at the University of Tennessee.
As a pediatric dietitian, I've seen it all — water bottle battles, lunch box negotiations and "just one sip" standoffs. Getting kids to drink enough water during the school day is often tricky — but doable. To help you keep your little one hydrated, I teamed up with two pediatric experts to gather science-backed advice and combined it with tips from my own experience. The result? A list of practical (and parent-approved) strategies that really work. So grab your favorite water bottle and let's dive into the tips.
How much water should kids be drinking?
You might be surprised that the classic "8 cups a day" rule isn't a one-size-fits-all for kids (or for adults). How much water your child actually needs depends on a variety of factors, including their height, weight, activity level and even the climate you live in. Hotter days or higher altitudes? Better pour an extra glass (or two).
That said, here are general daily guidelines set by the American Academy of Pediatrics:
1 to 3 years: 4 cups
4 to 8 years: 5 cups
9+ years: 7 to 8 cups
Keep in mind that teens — especially those who play sports — may need even more. The Academy of Nutrition and Dietetics reports that they may require 9 to 14 cups daily, depending on activity level and other variables.
While adults are generally encouraged to follow thirst cues instead of tracking ounces, that strategy doesn't always work for young ones. "Kids don't always recognize thirst as early as adults do. That's why regular, steady hydration is far better than trying to 'catch up' once they're already thirsty," says Long. With that in mind, here are five easy tips for helping your kiddo stay hydrated throughout the school day.
Tip No. 1: Make water a part of their morning routine
Since you can't be there to remind (er, nag) your child to drink water during the school day, make the most out of the time you have with them before drop-off.
"Have your child drink a glass of water with breakfast — just like brushing their teeth or packing their backpack, it sets the tone for the day and reminds their body to stay hydrated," says Dr. Amy Alter-Pandya, a board-certified family medicine physician in Tempe, Ariz.
Putting out your child's favorite water bottle, buying colorful cups or setting a reminder for the whole family to take a few sips are some easy ways to get them interested in making hydration part of their morning routine.
Tip No. 2: Have a 'school-only' water bottle that they love
Sometimes a new gadget or accessory is just the boost we need to stick with a healthy habit — it's the same reason many of us splurge on a brand-new workout wardrobe before even setting foot in the gym. Personally, I've found that giving kids a special item or experience tends to spark their internal motivation. One easy way to do that? Let them choose a water bottle that's reserved just for school. "And make it irresistible," says Long. Maybe it features their favorite character, matches their school colors or is decorated with stickers they picked out. Because the bottle feels unique and exclusive, they're more likely to use it throughout the school day. Don't forget, their school-only water bottle also needs to be "lightweight, easy to open and with no weird taste from the material," says Long.
Tip No. 3: Pack hydrating foods for lunch
Your kid's water bottle doesn't need to do all the heavy lifting! That trusty lunch box is pulling hydration duty too. In fact, it's estimated that approximately 20% of the fluid you need usually comes from food.
To help boost the water content of your child's lunch, I recommend including at least one hydrating fruit or vegetable, such as:
Watermelon
Cucumber
Strawberries
Cantaloupe
Celery
Tomatoes
Oranges
Lettuce
For even more H2O support, Alter-Pandya suggests freezing grapes or chunks of watermelon the night before and packing them in a snack container. "They stay cold and refreshing, and they're a fun way to sneak in a little extra hydration during snack time."
Tip No. 4: Add simple hydration reminders to their routine
Turn hydration into a habit by linking it to routines your kiddo already follows without thinking. For example, I love teaching kids to pair drinking water with a routine activity — like taking a sip after every bathroom break or between classes when the bell rings. This strategy, known as habit stacking, connects a new habit to a familiar routine, making it more likely to stick.
Another helpful trick? Long suggests drawing two lines on your child's water bottle — one for a morning goal and another for the afternoon. This simple visual cue makes it easy for kids to track their intake, turning hydration into a game.
"For older kids, especially if they have a smartwatch or a phone, setting a hydration reminder around lunchtime can be a helpful nudge," says Alter-Pandya. "Even a sticky note in the lunch box can do the trick. The goal is just to keep it top of mind during their busy school day."
Tip No. 5: Flavor it naturally
Just like adults, kids can get tired of drinking the same old thing all day long. Rather than falling back on the novelty of a sugary drink, add a little flavor to your child's water to help pique their taste buds. "Add a slice of lemon or cucumber," says Alter-Pandya. "Some families even freeze a few berries into ice cubes to drop in. It helps make drinking water feel like a treat."
Best kids' water bottles for school
Our experts agree that one of the simplest ways to help your child stay hydrated at school is to send them with a water bottle that's easy to open and comfortable to hold. Here are some features to look for:
Material: Stainless steel bottles are a favorite because they're durable and keep water cold for hours. (They're also easy to clean — a win for parents.) However, stainless steel water bottles can be a bit heavy, so if your child is smaller or carries a heavy backpack, a lighter bottle may be best. It's also worth noting that some day cares and preschools don't allow stainless steel bottles. Make sure you know the rules before buying. If you go the plastic route, make sure the bottle is made from food-grade, BPA-free plastic.
Leakproof: This is a must — nobody wants a soggy backpack! While many bottles claim to be leakproof, I recommend reading through customer reviews to see how the bottle performs IRL.
Kid-friendly design: The water bottle needs to be easy for little hands to use. If it's too tricky to drink from, they're less likely to get the water they need throughout the day. Look for kid-friendly features like straws, simple spouts and easy-to-open lids.
Ease of cleaning: While your kiddo couldn't care less, parents want a water bottle that's easy to clean. For a fuss-free option, look for water bottles that are dishwasher-safe and have parts that can be separated for easy cleaning.
Want a water bottle that checks all the boxes? Here are our top picks:
Size: 14 oz. | Material: Stainless steel | Dishwasher-safe: Yes (lid only)
The Owala Kids Flip is a great spillproof and easy-to-use pick for kids. It has a hideaway straw feature that stays covered and clean, making it ideal for germy places like school. It's also made from durable stainless steel, so it keeps drinks cold for hours. While the lid is dishwasher-safe, the cup and intricate straw system need to be hand-washed, meaning this bottle requires a little more cleaning care than some others on our list.
Size: 12 oz. | Material: Stainless steel | Dishwasher-safe: Yes
The stainless steel Yeti Rambler Jr., with its dentproof durability, is built to handle anything your kid throws at it (literally). With its easy flip-up straw and handle, the Yeti is perfect for carrying or attaching to backpacks. Just make sure to keep the lid closed during transport, as water can dribble out if the straw isn't fully down.
This dishwasher-safe pick comes in a huge variety of colors, so your kiddo can easily select one they love.
Size: 14 oz. | Material: BPA-free plastic | Dishwasher-safe: Yes (top rack)
The Contigo Trekker Kids Water Bottle comes in a convenient two-pack and offers great value compared with many other bottles on the market. Don't be fooled by its wallet-friendly price: Contigo is an A+ pick. It's spillproof and lightweight and features a simple press-to-open button that's easy for kids to use. Although it's made from plastic, the bottle is free of potentially harmful chemicals (like BPA, phthalates and PVC). It's also dishwasher-safe for easy cleaning and comes with a lifetime guarantee.
Simple Modern
Size: 14 oz. | Material: Stainless steel | Dishwasher-safe: Yes
Yahoo senior wellness writer and registered dietitian Kelli McGrane says this is the water bottle that finally passed the test — not just for her, but for her picky toddler. "I've tried countless water bottles over the years, and this is by far my favorite," she says. "It's easy to clean and it actually keeps water cold all day thanks to the double-wall insulation. My 4.5-year-old is snobby when it comes to his H2O being ice-cold, and this is the first one that's met his high standards."
The Simple Modern Kids Summit Water Bottle comes in a variety of fun colors and prints — including kid-favorite characters like Paw Patrol, Bluey and Elmo. It features a built-in loop handle for easy carrying. While the bottle is a bit slippery, McGrane notes her 2-year-old has no trouble holding it. And while all parts are technically dishwasher-safe, she recommends hand-washing the body to prevent the color and design from fading.
Meet our experts
Amy Alter-Pandya, DO, board-certified family medicine physician in Tempe, Ariz.
Darria Long, MD, board-certified ER physician and clinical assistant professor at the University of Tennessee
Our health content is for informational purposes only and is not intended as professional medical advice. Consult a medical professional on questions about your health.
