The best thing to give a vomiting toddler is small, frequent sips of an oral rehydration solution like Pedialyte, starting with about 5 mL (one teaspoon) every minute. Solid food can wait. The immediate priority is preventing dehydration, which can happen fast in small children who are losing fluids through vomiting.
Start With Tiny Amounts of Fluid
When your toddler is actively throwing up, giving them a full cup of anything will likely come right back up. The key is going slow. Offer about a teaspoon (5 mL) of fluid every minute using a spoon or a small syringe. This pace feels painfully slow when your child is miserable, but it works because the stomach can absorb small volumes even when it’s irritated. Once your toddler keeps that down for 15 to 20 minutes, you can gradually increase the amount.
An oral rehydration solution like Pedialyte is the best choice because it contains a precise balance of sodium, sugar, and water designed to replace exactly what a sick child loses. Sports drinks might seem like a reasonable substitute, but they contain too much sugar, which can actually make diarrhea worse if your toddler develops that too. Plain water is fine in small amounts, but it doesn’t replace the salts your child is losing.
If your toddler refuses Pedialyte (many kids dislike the taste), try offering it cold or as frozen popsicles. Breast milk is also a good option for toddlers who are still nursing, since it’s easy to digest and provides both fluid and nutrition.
When to Reintroduce Food
Hold off on solid foods for about eight hours after vomiting starts. Pushing food too early often triggers another round. Once your toddler has kept fluids down and seems interested in eating, offer bland, easy-to-digest options: yogurt, bananas, rice, applesauce, or plain toast.
You may have heard of the BRAT diet (bananas, rice, applesauce, toast) as the go-to for a sick stomach. It’s no longer formally recommended because it’s too restrictive and doesn’t provide enough nutrition for a recovering child. Those foods are still fine choices, but you don’t need to limit your toddler to only those four items. Once they’re ready to eat, a normal age-appropriate diet is the goal. Let your child’s appetite guide you. Small portions are better than large meals, and it’s completely normal for a toddler to eat very little for a day or two after a stomach bug.
What Not to Give
Do not give your toddler any over-the-counter anti-nausea or anti-diarrhea medications unless a doctor specifically tells you to. These medications are not designed for young children and can cause serious side effects. Even prescription anti-nausea medication has not been established as safe for children under 4 years old, so its use in toddlers requires a doctor’s direct guidance.
Avoid fruit juices, sodas, and sugary drinks. The high sugar content pulls water into the intestines and can make vomiting and diarrhea worse. Milk and dairy (other than yogurt) can also be harder to digest during a stomach illness, so it’s worth holding off on those for the first day or so.
You might also wonder about probiotics. Despite their popularity, a large clinical trial involving nearly 1,000 young children (median age 1.4 years) found that the probiotic strain most commonly recommended for gut health did not speed up recovery or reduce symptoms of acute gastroenteritis compared to a placebo. Probiotics won’t hurt, but the evidence suggests they won’t meaningfully help either.
Signs of Dehydration to Watch For
Dehydration is the real danger with vomiting in toddlers, and it can develop within hours. Watch for these signs:
- Fewer wet diapers than usual, or no wet diaper for eight hours
- Dry mouth, lips, and tongue
- Few or no tears when crying
- Unusual sleepiness or irritability
- Sunken eyes, cheeks, or abdomen
If you notice any of these, contact your child’s doctor. Mild dehydration can usually be corrected at home with oral rehydration, but moderate to severe dehydration may need medical treatment.
When Vomiting Needs Medical Attention
Most toddler vomiting is caused by a stomach virus and resolves on its own within 12 to 24 hours. But certain warning signs point to something more serious. Seek emergency care if your toddler’s vomit contains blood or green material, or if vomiting comes with black or bloody stools, a severe headache, intense abdominal pain, or visible swelling of the abdomen.
Call your child’s doctor if vomiting lasts more than 24 hours in a child under 2, or more than 48 hours in a child 2 and older. You should also call if vomiting is accompanied by diarrhea, if your child recently started a new medication, or if you’re seeing any of the dehydration signs listed above. A toddler who can’t keep even tiny sips of fluid down after several hours of trying also warrants a call.