Most people can start eating again once their appetite naturally returns, which typically happens one to two hours after the last episode of vomiting. There’s no strict medical timer you need to follow. The key is to begin with small sips of fluid, then gradually move to bland foods as your stomach signals it’s ready.
Start With Small Sips, Not Food
Your first priority after vomiting isn’t food. It’s replacing lost fluid. Wait about 15 to 30 minutes after your last episode, then start sipping clear liquids in very small amounts: roughly a teaspoon (5 mL) every five minutes. Water, ice chips, or an oral rehydration solution all work. If that stays down, gradually increase the volume over the next hour or two.
This slow approach matters because drinking too much too fast can trigger another round of vomiting. Think of it as testing your stomach in stages. If you tolerate small sips for 30 to 60 minutes, move to slightly larger amounts. Broth, diluted juice, or an electrolyte drink are good next steps. Avoid caffeinated sodas during this phase. Caffeine increases stomach acid production, and carbonation inflates the stomach, making reflux more likely.
When to Try Solid Food
Once you’re keeping liquids down comfortably, usually within one to four hours, you can try a small amount of bland food. The NIDDK recommends simply returning to your normal diet when your appetite comes back, even if you still have diarrhea. But in practice, most people feel better easing in with gentle foods first.
You’ve probably heard of the BRAT diet: bananas, rice, applesauce, and toast. It’s fine for a day or two, but Harvard Health Publishing notes there’s no clinical evidence that these four foods are superior to other bland options. You don’t need to limit yourself to just those. Brothy soups, oatmeal, boiled potatoes, crackers, plain cooked chicken, and unsweetened dry cereal are all easy on the stomach and provide more nutritional variety.
Keep portions small. A few bites are enough to start. If that sits well after 20 to 30 minutes, eat a little more. Trying to force a full meal before your body is ready often backfires.
Foods to Avoid in the First 24 Hours
Your stomach lining is irritated after vomiting, and certain foods will make that worse. For at least the first day, skip:
- Fried or greasy foods, which are high in saturated fat and take much longer to break down, slowing digestion
- Dairy products like milk, cheese, and ice cream, which can be hard to digest when your gut is inflamed
- Spicy foods, which can further irritate your stomach lining
- Acidic foods like citrus fruits, tomato sauce, and vinegar-based dressings
- Caffeine and alcohol, both of which increase stomach acid and can trigger nausea
- High-fiber foods like raw vegetables, leafy greens, nuts, seeds, and popcorn
- Sugary foods like candy, cakes, and desserts
Once your stomach has settled for a full day without vomiting, you can start reintroducing more nutritious foods: cooked carrots, sweet potatoes without skin, avocado, eggs, fish, and skinless poultry are all good next steps.
Rehydration for Children
Kids dehydrate faster than adults, so fluid replacement is especially important. The CDC recommends that children under 22 pounds (10 kg) get 2 to 4 ounces of an oral rehydration solution after each episode of vomiting. Children over that weight should get 4 to 8 ounces per episode. Use small, frequent sips rather than offering a full cup at once.
For babies and toddlers, a syringe can help deliver tiny amounts every few minutes. Breast milk or formula can usually continue alongside rehydration fluids. The same gradual approach applies: once a child is keeping fluids down and showing interest in food, let them eat bland, familiar foods in small amounts.
Signs That Dehydration Needs Attention
Most vomiting episodes resolve on their own within 12 to 24 hours. The real danger is dehydration, especially if you can’t keep any fluids down. In adults, warning signs include going many hours without urinating, dark-colored urine, dizziness, confusion, and extreme thirst. Skin that doesn’t flatten back quickly after being pinched is another red flag.
In infants and young children, watch for no wet diapers for three hours or more, no tears when crying, a sunken soft spot on the skull, rapid heart rate, and unusual sleepiness or irritability. Seek medical care if diarrhea has lasted more than 24 hours, if you can’t keep any fluids down, if there’s blood in the stool, or if fever reaches 102°F or higher.