When you have a stomach bug, the best approach is to let your stomach rest for a few hours after vomiting, then start with small sips of water or ice chips before gradually moving to bland, easy-to-digest foods like toast, rice, bananas, and chicken. The key is a slow progression from liquids to solids, not jumping straight back into normal meals.
Start With Liquids, Not Food
Right after vomiting, skip the food entirely. Give your stomach a break of a few hours before you try anything at all. When you’re ready, start by sucking on ice chips or taking small sips of water every 15 minutes. The goal here isn’t hydration in big gulps. It’s testing whether your stomach can keep something down without triggering another round of nausea.
Once plain water stays down, you can branch out to clear broths, diluted fruit juice, or an oral rehydration solution. These replace not just water but the sodium and potassium you’re losing through vomiting and diarrhea. Sports drinks work in a pinch, though they contain more sugar than ideal. Avoid anything carbonated, caffeinated, or dairy-based during this phase.
When to Introduce Solid Food
Once you’ve kept liquids down for a few hours and your appetite starts returning on its own, you can try small amounts of solid food. Don’t force it. If you’re not hungry yet, your body is telling you it’s not ready. When you do eat, start small: a few bites of plain toast, a handful of crackers, or half a banana. Portions matter more than variety at this stage.
Good first foods include:
- Plain white rice, which is gentle and binding
- Toast or soda crackers, without butter or toppings
- Bananas, which also help replace lost potassium
- Applesauce, easy to digest and mild in flavor
- Plain boiled potatoes, a starchy option that sits well
- Chicken, plain and unseasoned, for protein when you’re ready
Eat slowly and pay attention to how your body responds. If a few bites of toast go well, wait 30 minutes to an hour before eating more. Rushing back to full meals is one of the most common mistakes people make during recovery.
The BRAT Diet: Helpful but Limited
You’ve probably heard of the BRAT diet (bananas, rice, applesauce, toast) as the standard advice for stomach bugs. Those foods are still fine choices, but sticking strictly to only those four items is no longer recommended. The BRAT diet lacks calcium, vitamin B12, protein, and fiber, all of which your body needs to actually recover.
For adults, eating BRAT-style foods for a day or so at your sickest is reasonable. But you shouldn’t follow it as a rigid plan for more than a day or two. As soon as you can tolerate it, start adding other bland foods like plain chicken, potatoes, or cooked vegetables. For children, the American Academy of Pediatrics specifically advises against a strict BRAT diet because it’s too restrictive. Following it for more than 24 hours in kids can actually slow down gut recovery.
Foods and Drinks to Avoid
Some foods are much harder on an irritated stomach and can make nausea, cramping, or diarrhea worse. While you’re sick and for a day or two after symptoms ease, steer clear of:
- Dairy products like milk, cheese, and ice cream. Your gut’s ability to digest lactose drops temporarily during a stomach bug, which can worsen diarrhea.
- Fatty or fried foods, which take longer to digest and can trigger nausea.
- Spicy foods, which irritate an already inflamed stomach lining.
- Alcohol and caffeine, both of which are dehydrating and can stimulate your gut in ways you don’t want right now.
- High-sugar foods and drinks, including full-strength fruit juice and soda, which can pull water into your intestines and make diarrhea worse.
- Raw vegetables and high-fiber foods, which are normally healthy but require more digestive effort than your stomach can handle right now.
Hydration Matters More Than Food
Dehydration is the biggest actual risk from a stomach bug, not the bug itself. Every episode of vomiting or diarrhea pulls water and electrolytes out of your body faster than you realize. Most healthy adults recover from viral gastroenteritis without any treatment, but dehydration can turn a miserable few days into something genuinely dangerous.
Sip fluids consistently throughout the day rather than trying to drink a full glass at once. If plain water feels like too much, try popsicles, broth, or oral rehydration solutions designed to replace electrolytes in the right ratio. You’ll know you’re staying adequately hydrated if you’re still urinating, even if less frequently than normal.
Watch for signs that dehydration is getting ahead of you: very dark urine, urinating much less than usual, dizziness when standing, a dry mouth that doesn’t improve with sips of water, or skin that doesn’t flatten back right away when you pinch it on the back of your hand. In children, fewer than three wet diapers in a day is a red flag. Confusion, extreme sleepiness, or an inability to keep any fluids down for more than 24 hours all warrant a call to your doctor.
What About Probiotics?
Probiotics are often suggested as a way to speed recovery from stomach bugs. The evidence, however, is mixed. In children, some studies have found that probiotics can shorten the duration of acute diarrhea by roughly 14 to 26 percent. In adults, the picture is less clear. A systematic review and meta-analysis of clinical trials in adults found no significant protective effect of probiotics on the duration or severity of gastrointestinal infections.
That doesn’t mean probiotics are harmful during a stomach bug. Yogurt (once you can tolerate dairy again) and fermented foods may help restore your gut’s normal bacterial balance after the worst has passed. But don’t count on a probiotic supplement to meaningfully shorten your illness.
A Realistic Recovery Timeline
Most stomach bugs run their course in one to three days. Here’s roughly what a typical recovery looks like in terms of eating:
First several hours: Nothing by mouth. Let your stomach settle completely after the last episode of vomiting. Ice chips and tiny sips of water only.
Hours 4 to 12: Small, frequent sips of clear liquids. Water, broth, diluted juice, or oral rehydration solutions. If these stay down, you’re moving in the right direction.
Hours 12 to 24: If liquids are staying down consistently, try a few bites of bland food. Toast, crackers, plain rice, banana. Keep portions small.
Days 2 to 3: Gradually expand what you’re eating. Add plain chicken, potatoes, cooked carrots, or eggs. Still avoid dairy, greasy food, and anything spicy or heavy.
Days 3 to 5: Most people can return to a normal diet, though your appetite and digestion may feel slightly off for up to a week. Reintroduce dairy, fiber, and richer foods one at a time so you can identify anything that still bothers you.
If diarrhea persists beyond 24 hours, you’re running a fever above 102°F, you notice blood or black color in your stool, or you simply can’t keep any fluids down, those are signs that your body needs more help than crackers and rest can provide.