After vomiting, most people can start sipping small amounts of water within 45 minutes to a few hours, and return to bland solid foods once they’ve kept liquids down for a few hours after that. The exact timeline depends on how severe the vomiting was and what caused it, but the general progression moves from rest to sips of water to clear liquids to easy foods over roughly 6 to 24 hours.
The First Hour: Let Your Stomach Rest
Your stomach needs a short break after throwing up. The muscles that line your stomach wall can fall into irregular contractions after vomiting, which weakens their ability to push food forward normally. If you eat or drink right away, your stomach may not be able to process it, and you’ll likely throw up again.
A good starting point is to wait at least 45 minutes after your last episode of vomiting before trying anything, even water. If you were vomiting repeatedly or violently, extend that rest to a full hour or longer. During this window, the best thing you can do is nothing: sit or lie still, breathe slowly, and let the nausea settle.
Start With Small Sips, Not Full Glasses
When you’re ready to try fluids, resist the urge to gulp down a glass of water. Your stomach is still sensitive, and volume matters. Start by sucking on ice chips or taking two small sips (roughly one ounce) every 3 to 5 minutes. If that stays down, gradually increase the amount over the next 15 to 30 minutes.
Once plain water is going well, you can move to other clear liquids: clear broth, diluted electrolyte drinks, ice pops, or gelatin. These add a small amount of sugar and sodium that help your body absorb the fluid more efficiently. Avoid anything carbonated, caffeinated, or high in sugar at this stage, as all three can irritate your stomach or pull water into your intestines and make things worse.
This sipping phase typically lasts a few hours. The goal is to prove to yourself that fluids are staying down consistently before you ask your stomach to handle anything more complex.
When to Try Solid Food
Once you’ve kept liquids down for two to four hours, your appetite may start creeping back. That’s your signal to try small amounts of bland, soft food. Good options include bananas, plain toast, crackers, applesauce, plain oatmeal, or white rice. These foods are low in fat, low in fiber, and easy for a recovering stomach to break down.
You may have heard of the BRAT diet (bananas, rice, applesauce, toast) as the go-to recommendation after vomiting. Those foods are still fine choices, but following them strictly is no longer recommended. The American Academy of Pediatrics notes that a rigid BRAT diet is too restrictive and lacks the protein, fat, and calories your body needs to actually recover. Sticking to it for more than 24 hours can slow healing rather than help it. The better approach is to eat bland foods as tolerated and broaden your diet as soon as you feel up to it.
Start with small portions. A few bites of toast or half a banana is plenty for your first attempt. If that stays down for an hour or so, eat a little more. Most people can return to a fairly normal diet within 24 hours of their last vomiting episode.
Foods That Can Set You Back
While you’re recovering, certain foods are more likely to trigger another round of nausea or make diarrhea worse. The main categories to avoid in the first day or two:
- High-fat foods like fried items, pizza, and fast food. Fat slows gastric emptying, which means food sits in your stomach longer and increases the chance of nausea.
- Dairy products. Vomiting and diarrhea can temporarily reduce your ability to digest lactose. Some people have trouble with milk and cheese for up to a month after a stomach illness.
- Caffeine from coffee, tea, or energy drinks. It stimulates stomach acid production and can worsen irritation.
- Sugary drinks and fruit juices. High concentrations of simple sugar can draw water into the intestines and worsen diarrhea.
- Spicy or acidic foods. These can irritate an already inflamed stomach lining.
A Slightly Different Timeline for Kids
Children follow the same general progression, but with a few important differences. Breastfed babies should continue nursing throughout the illness, even during the rehydration phase. Breast milk is easily digested and provides both fluid and nutrition. Formula-fed infants can return to full-strength formula as soon as they’re rehydrated, without needing to dilute it.
For small children, use a teaspoon, syringe, or medicine dropper to offer about 5 mL (one teaspoon) of fluid at a time, then gradually increase. Children under 22 pounds should get 2 to 4 ounces of an oral rehydration solution after each episode of vomiting or diarrhea. Children over that weight need 4 to 8 ounces. The CDC’s guidelines emphasize that prolonged “gut rest” is not recommended for children. The goal is rapid rehydration followed by a quick return to their normal, age-appropriate diet, including solid foods.
How Long the Whole Thing Lasts
If your vomiting is caused by a stomach virus (the most common culprit), the active vomiting phase usually burns itself out within one to two days. You may feel queasy or have a reduced appetite for another day or two beyond that, but most people are back to eating normally within three to five days total.
In severe cases, stomach flu symptoms can linger for up to a week or two, though this is uncommon. Food poisoning tends to follow a similar arc, with the worst of it passing in 24 to 48 hours.
Signs You Need Medical Help
Most vomiting runs its course without complications, but dehydration is the real risk, especially for young children and older adults. Watch for these warning signs that your body isn’t recovering on its own:
- No urination for 8 or more hours in adults, or no wet diapers for 3 or more hours in infants
- Rapid heartbeat or rapid breathing at rest
- Confusion or unusual drowsiness
- Fainting or dizziness when standing
- Inability to keep any fluids down for more than 12 hours
These signs point to moderate or severe dehydration, which may need IV fluids to correct. Bloody vomit, severe abdominal pain, or a fever above 104°F also warrant prompt medical attention.