The most important thing to give a toddler with diarrhea is fluids, specifically an oral rehydration solution (ORS) like Pedialyte. Diarrhea itself is rarely dangerous in toddlers, but the dehydration it causes can be. Beyond fluids, your toddler should keep eating a normal, balanced diet with a few strategic adjustments while their gut recovers.
Oral Rehydration Solutions Come First
Oral rehydration solutions are the gold standard for replacing the water and electrolytes your toddler loses with each loose stool. Products like Pedialyte are specifically formulated with the right balance of sodium, potassium, and sugar to help your child’s intestines absorb fluid efficiently. The American Academy of Pediatrics recommends solutions containing 40 to 60 milliequivalents per liter of sodium for preventing dehydration, which is what most store-bought options provide.
For a toddler who isn’t showing signs of dehydration yet, offer about 10 mL per kilogram of body weight (roughly half an ounce per pound) after each watery stool. So a 25-pound toddler would get about 4 ounces of ORS after each episode. If your child is already mildly dehydrated, the target increases to about 50 mL per kilogram over two to four hours. Don’t try to get them to drink it all at once. Small, frequent sips every few minutes work better and are less likely to trigger vomiting.
If your toddler refuses Pedialyte (many do, since it’s not exactly delicious), you can try freezing it into popsicles or offering it chilled. Some parents mix a small amount of juice in for flavor, but keep the ratio heavily in favor of the ORS.
What Your Toddler Should Eat
You may have heard of the BRAT diet: bananas, rice, applesauce, and toast. It was standard advice for decades, but the American Academy of Pediatrics no longer recommends following it strictly. It’s too low in protein, fat, and calories to support recovery. Sticking to BRAT foods for more than 24 hours can actually slow down healing by depriving your toddler’s gut of the nutrients it needs to repair itself.
Instead, let your toddler eat a regular diet as tolerated. Good options include scrambled eggs, skinless chicken or turkey, cooked vegetables, crackers, pasta, and bread. Bananas and rice are still fine as part of a broader menu. The key is offering smaller, more frequent meals rather than three big ones. Your toddler’s stomach handles less volume better right now.
If your child is still breastfeeding, keep breastfeeding. Breast milk provides fluids, calories, and immune factors that help fight the infection. For formula-fed toddlers, continue their usual formula unless your pediatrician says otherwise.
Drinks and Foods to Avoid
Sugary drinks are one of the worst things you can give a toddler with diarrhea. Apple juice, sports drinks, soda, and beverages sweetened with high-fructose corn syrup or sorbitol pull extra water into the intestines, which makes diarrhea worse. This is called osmotic diarrhea, and it’s especially common in toddlers who drink a lot of fruit juice even when they’re healthy. The NIDDK specifically links excessive intake of beverages high in fructose and sorbitol to chronic loose stools in young children.
You may also want to temporarily limit dairy. Viral stomach bugs can cause a short-term form of lactose intolerance by damaging the lining of the intestines where lactose is normally broken down. If your toddler seems gassier or the diarrhea worsens after drinking cow’s milk, pull back on dairy for a few days and see if it helps. This temporary sensitivity usually resolves on its own as the gut heals. Yogurt is often tolerated better than milk because the fermentation process breaks down some of the lactose.
Greasy, fried, or very high-fiber foods can also irritate an already upset stomach. Keep things simple and bland-leaning for the first couple of days, then gradually return to normal meals.
Probiotics May Shorten Recovery
Certain probiotics can modestly reduce how long your toddler’s diarrhea lasts. A meta-analysis published by the American Academy of Pediatrics found that Lactobacillus-based probiotics shortened diarrhea by about 0.7 days and reduced stool frequency by roughly 1.6 fewer stools per day compared to a placebo. That’s not a dramatic difference, but when you’re dealing with a miserable toddler, cutting almost a full day off recovery is meaningful.
Look for products specifically labeled with the strain Lactobacillus rhamnosus GG, which has the strongest evidence behind it. Probiotics come in powders, drops, and chewables designed for young children. They’re generally safe for toddlers, though it’s worth checking with your pediatrician if your child has any immune system concerns.
Zinc Can Help in Some Cases
The World Health Organization recommends giving children with diarrhea 20 mg of zinc per day for 10 to 14 days (10 mg per day for babies under six months). Zinc helps strengthen the intestinal lining and supports immune function. This recommendation is primarily aimed at children in low- and middle-income countries where zinc deficiency is common, but it’s worth knowing about. If your toddler has frequent bouts of diarrhea or you suspect their diet is low in zinc, ask your pediatrician whether supplementation makes sense.
Over-the-Counter Medications Are Off Limits
Do not give your toddler anti-diarrheal medications designed for adults. Bismuth subsalicylate (the active ingredient in Pepto-Bismol) should not be used in children under 12. Young children are more sensitive to salicylates, and the risk increases when they’ve already lost fluids from vomiting or diarrhea. There’s also a concern about Reye’s syndrome, a rare but serious condition, if the child has or is recovering from the flu or chickenpox.
Loperamide (Imodium) is also not appropriate for toddlers. It works by slowing gut motility, which can cause dangerous complications in very young children, including severe constipation and abdominal distension. The best “medicine” for toddler diarrhea is fluids, food, and time.
Signs of Dehydration to Watch For
Most toddler diarrhea resolves within a few days without complications. What you’re really monitoring for is dehydration. Four signs together are strong predictors of at least a 5% fluid loss: no tears when crying, dry mouth and lips, a generally ill appearance, and slow capillary refill (if you press on their fingernail and the pink color takes more than two seconds to return). You don’t need all four to be concerned. Two or more of these showing up together means your toddler needs medical attention.
Other warning signs include fewer than three wet diapers in 24 hours, sunken eyes, unusual sleepiness or irritability, and skin that stays “tented” when you gently pinch it on the belly instead of snapping back immediately.
When Diarrhea Needs Medical Attention
Blood or black color in your toddler’s stool is never normal and always warrants a call to the doctor. The same goes for a persistent fever above 104°F (40°C), mucus in the stool (which can indicate a bacterial infection), or diarrhea lasting a week or longer. Prolonged diarrhea is evaluated differently than a standard stomach bug and may point to a food intolerance, infection, or other underlying issue that needs specific treatment. If your toddler is vomiting so frequently that they can’t keep any fluids down for several hours, that’s also a situation where medical help is needed to prevent dehydration from escalating.