When you have food poisoning, the priority is fluids first, then bland foods as your appetite returns. You don’t need to force yourself to eat on a strict timeline. Once you can keep liquids down and feel hungry again, you can start reintroducing solid foods, even if diarrhea hasn’t fully resolved.
Start With Fluids, Not Food
Vomiting and diarrhea pull water and electrolytes out of your body fast. Replacing them is more urgent than eating. Plain water helps, but it doesn’t replace the sodium and potassium you’re losing. A simple oral rehydration solution works better: mix 4 cups of water with half a teaspoon of table salt and 2 tablespoons of sugar. The sugar isn’t for energy. It helps your intestines absorb the water and salt more efficiently.
If making your own solution doesn’t appeal to you, a low-sugar sports drink like Gatorade G2 with an extra half teaspoon of salt stirred in gets you closer to the right electrolyte balance. Pedialyte and similar products designed for rehydration also work well. Sip slowly rather than gulping. If you’re vomiting frequently, take small sips every few minutes instead of drinking a full glass at once.
Signs that dehydration is becoming serious include urinating very little, a dry mouth and throat, and feeling dizzy when you stand up. A fever over 102°F, bloody diarrhea, diarrhea lasting more than 3 days, or vomiting so severe you can’t keep any liquids down all warrant a call to your doctor or a trip to urgent care.
When to Start Eating Again
There’s no fixed number of hours you need to wait. The National Institute of Diabetes and Digestive and Kidney Diseases recommends eating when your appetite returns, which could be a few hours after your last bout of vomiting or the next day. Your body gives you a reliable signal here: if the thought of food makes you nauseous, wait. If you feel genuinely hungry, that’s your cue.
Best Foods for the First Day or Two
You’ve probably heard of the BRAT diet: bananas, rice, applesauce, and toast. It’s a reasonable starting point because those foods are bland and easy to digest, but there’s no research showing it works better than other gentle options. And restricting yourself to just those four foods for more than a day or two can leave you short on protein and other nutrients you need to recover.
A broader list of foods that are equally gentle on your stomach:
- Brothy soups (chicken broth, miso, vegetable broth) replace fluids and salt at the same time
- Oatmeal made with water instead of milk
- Boiled or baked potatoes without butter or heavy toppings
- Plain crackers or unsweetened dry cereal
- White rice or plain pasta
These give you easy calories without asking much of your digestive system. Eat small portions. A few bites every couple of hours is better than a full meal that overwhelms your stomach.
Adding Protein and Nutrients as You Improve
Once you’ve kept bland carbohydrates down for a day or so, start working in foods with more nutritional substance. Your body needs protein to repair tissue and fuel your immune response, and sticking with plain toast indefinitely won’t provide that.
Good next-step foods include skinless chicken or turkey, fish, eggs, avocado, cooked carrots, sweet potatoes without skin, and cooked squash like butternut or pumpkin. These are still bland and easy to digest, but they deliver protein, healthy fats, and vitamins that speed recovery. You don’t have to eat them in a specific order. Just pay attention to how your stomach responds and pull back if something doesn’t sit well.
Foods to Avoid During Recovery
High-fat foods are the biggest offenders. Fried foods, pizza, fast food, and anything greasy can trigger another round of cramping and diarrhea because fat is harder for your gut to break down, especially when inflamed.
Dairy deserves special caution. Food poisoning can temporarily damage the lining of your small intestine, reducing your ability to digest lactose (the sugar in milk). This temporary lactose intolerance can last a month or more after the initial illness. If you notice bloating, gas, or diarrhea after having milk, cheese, or ice cream, that’s likely what’s happening. Yogurt is sometimes tolerated better because fermentation breaks down some of the lactose, but it’s worth testing carefully.
Other foods to skip until you’re fully recovered: alcohol, caffeine, spicy dishes, and raw vegetables with tough fiber. All of these can irritate an already sensitive digestive tract or speed up gut motility when things are already moving too fast.
Whether Probiotics Help
There’s reasonable evidence that certain probiotic strains can shorten a bout of infectious diarrhea by roughly one day. The strains with the most research behind them are Saccharomyces boulardii (a beneficial yeast) and Lactobacillus rhamnosus GG. A review of 22 trials found that Saccharomyces boulardii, taken for 5 to 10 days, reduced both the duration of diarrhea and the frequency of loose stools.
Most of this research was done in children, and results in adults are less consistent. Still, probiotics are generally well-tolerated and unlikely to make things worse. Look for products that list specific strains on the label rather than just “probiotic blend.” Fermented foods like plain yogurt, kefir, kimchi, or sauerkraut also contain beneficial bacteria, but they may be easier to introduce once the worst of the vomiting has passed.
A Practical Recovery Timeline
Most cases of food poisoning resolve within one to three days. Here’s a rough sequence that works for most people, though your body may move through these stages faster or slower:
- Hours 0 to 12: Focus entirely on sipping fluids and electrolytes. Don’t worry about food.
- Hours 12 to 24: If vomiting has stopped and you feel hungry, try small amounts of plain crackers, broth, or rice.
- Days 1 to 2: Expand to other bland, low-fat foods. Eat small portions spread throughout the day.
- Days 2 to 4: Add lean proteins, cooked vegetables, and more variety. Continue avoiding greasy, spicy, and dairy-heavy foods.
- Days 4 to 7: Gradually return to your normal diet. Reintroduce dairy cautiously and watch for bloating.
If your symptoms haven’t improved noticeably by day three, or if they get worse at any point, that’s a sign something beyond a typical case of food poisoning may be going on.