The fastest way to settle a toddler’s stomach is to offer small, frequent sips of fluid and ease back into bland foods once the vomiting or nausea passes. Most stomach upsets in toddlers are caused by viral infections and resolve on their own within one to three days. Your main job during that time is to prevent dehydration and avoid foods or drinks that make things worse.
Start With Small Sips, Not Full Cups
When a toddler is actively vomiting, the instinct is to push fluids. But giving too much at once can trigger more vomiting. The goal is tiny amounts, often. For children over one year old, offer 2 to 3 teaspoons (about 10 to 15 milliliters) of clear fluid every five minutes. That’s barely a swallow, and that’s the point.
After four hours with no vomiting, you can increase the amount. After eight hours, most toddlers can return to regular fluids. If vomiting continues past 12 hours, switch to an oral rehydration solution like Pedialyte, which replaces lost electrolytes more effectively than water or juice. During active dehydration, the general guideline is 50 to 100 milliliters of oral rehydration solution per kilogram of body weight over four hours. For a 25-pound toddler, that works out to roughly 19 to 38 ounces spread across those four hours, given in small sips.
Avoid apple juice, pear juice, and other high-sugar fruit juices. These contain sugars like sorbitol that can actually pull water into the intestines and worsen diarrhea. In fact, diets high in sugar and fruit juice are one of the most common causes of persistent diarrhea in toddlers, sometimes called “toddler’s diarrhea.”
What to Feed (and What to Skip)
You may have heard of the BRAT diet: bananas, rice, applesauce, and toast. It used to be the standard advice for kids with stomach bugs, but the American Academy of Pediatrics no longer recommends following it strictly. It’s too low in nutrients and fat to help the gut recover. The individual foods are fine as part of a broader menu, but a toddler shouldn’t eat only those four things for days.
Once your toddler can keep fluids down and shows interest in eating, offer soft, bland foods they already like. Plain crackers, oatmeal, mashed potatoes, plain pasta, and chicken are all reasonable options. Small portions work better than full meals. Let your toddler’s appetite guide you rather than pushing food before they’re ready.
Skip greasy, fried, or heavily seasoned foods until the stomach has fully settled. Dairy can sometimes make diarrhea worse during a stomach illness because the gut temporarily produces less of the enzyme needed to digest lactose. If your toddler seems to get worse after milk or yogurt, hold off for a day or two and try again.
Stomach Flu vs. Food Poisoning
If you’re trying to figure out what caused the upset, timing is the biggest clue. Viral gastroenteritis (the stomach flu) has an incubation period of 24 to 48 hours before symptoms appear. Food poisoning hits much faster, typically two to six hours after eating contaminated food. Food poisoning also tends to resolve more quickly, sometimes within hours, as the body works to expel whatever it took in. A stomach virus usually lingers for about two days, sometimes longer.
The treatment is essentially the same for both: keep your toddler hydrated and ride it out. But if multiple family members who ate the same meal get sick around the same time, food poisoning is the more likely explanation.
Probiotics Can Help Shorten the Illness
Giving your toddler a probiotic during a bout of stomach illness is one of the few interventions that has solid evidence behind it. A meta-analysis of randomized controlled trials found that probiotics significantly reduced how long diarrhea lasted in children and also shortened the duration of vomiting. By the second day, children taking probiotics had noticeably fewer episodes of diarrhea compared to those who didn’t.
Look for a children’s probiotic containing Lactobacillus or Saccharomyces strains, which are the types most studied for gut illness in kids. These come in powder or chewable forms designed for young children and can be mixed into food or fluid.
Chamomile Tea: Gentle but Limited
Chamomile is one of the most common home remedies parents reach for, and it’s generally considered safe for toddlers in small amounts when brewed as a weak tea and cooled to a comfortable temperature. The National Institutes of Health classifies chamomile as likely safe when consumed in amounts commonly found in teas. Some research suggests chamomile combined with other herbs may help with diarrhea in children, though chamomile alone hasn’t been proven to treat stomach symptoms.
If your toddler will sip a little lukewarm chamomile tea, it won’t hurt and may provide some comfort. Just don’t rely on it as a treatment or substitute it for proper rehydration fluids.
Medications to Avoid
Do not give your toddler Pepto-Bismol. Its active ingredient is related to aspirin, and children under 12 should not take salicylate products because of the risk of Reye’s syndrome, a rare but serious condition that affects the brain and liver. This risk is especially elevated when a child has or is recovering from an illness with fever, like a stomach virus.
Anti-diarrheal medications designed for adults are also not appropriate for toddlers. The goal with a stomach bug is to let the body clear the infection, not to stop the process. Keeping your toddler hydrated while the illness runs its course is safer and more effective than trying to medicate the symptoms away.
Signs of Dehydration That Need Attention
Mild dehydration shows up first as decreased urine output. If your toddler has fewer wet diapers than usual but is otherwise acting normally, that’s an early signal to push fluids more aggressively. With moderate dehydration, you’ll notice a dry mouth, skin that doesn’t bounce back quickly when gently pinched, a faster heart rate, and increased fussiness or irritability.
Severe dehydration is a medical emergency. A toddler who is extremely lethargic, difficult to wake, has mottled or grayish skin, or is breathing rapidly needs emergency care. Low blood pressure and shock are late signs that organs aren’t getting enough blood flow. If your toddler hasn’t urinated in six or more hours, seems unusually drowsy, or has no tears when crying, those are clear signals to seek help rather than continue managing things at home.