When your stomach is upset, the best approach is to focus on hydration first, then eat small amounts of plain, easy-to-digest foods as soon as you feel ready. Most experts no longer recommend strict food restrictions during stomach illness. Instead, the goal is to return to your normal diet as quickly as your appetite allows, while avoiding a few specific things that can make symptoms worse.
Hydration Comes First
Replacing lost fluids matters more than food when you’re dealing with nausea, vomiting, or diarrhea. Water alone works for mild cases, but if you’ve been vomiting or having frequent diarrhea, you’re losing electrolytes (sodium, potassium) along with water. Drinks that contain both a small amount of sugar and sodium help your body absorb water faster. This happens because your intestinal lining uses a specific transport system that pulls in one sodium molecule alongside one glucose molecule, dragging water with them. That 1:1 ratio of sugar to sodium is what makes oral rehydration solutions so effective.
Practical options include diluted fruit juice with a pinch of salt, clear broths, or store-bought electrolyte drinks. Sip slowly rather than gulping. If you’re vomiting, try taking small sips every few minutes rather than drinking a full glass at once. Ice chips or frozen electrolyte pops can help if even sipping feels like too much.
What to Eat When Your Appetite Returns
You don’t need to wait a set number of hours or follow a rigid progression. Research from the National Institute of Diabetes and Digestive and Kidney Diseases shows that following a restricted diet does not help treat viral gastroenteritis, and most experts do not recommend fasting through it. When your appetite comes back, you can generally return to your normal diet even if you still have some diarrhea.
That said, your body will likely tell you what it can handle. Foods that tend to sit well on a recovering stomach include:
- Plain starches: white rice, plain toast, crackers, boiled potatoes
- Lean proteins: plain chicken breast, scrambled eggs, plain fish
- Cooked vegetables: steamed carrots, peeled zucchini, squash
- Simple fruits: bananas, applesauce, melon
- Broth-based soups: chicken soup with rice or noodles
Start with small portions. Eating a little every couple of hours often works better than sitting down to a full meal, which can overwhelm a sensitive stomach.
The BRAT Diet Is Outdated
You’ve probably heard of the BRAT diet (bananas, rice, applesauce, toast). It was the standard recommendation for decades, but it’s no longer endorsed by major medical organizations. The Cleveland Clinic notes that a strict BRAT diet lacks essential nutrients including calcium, vitamin B12, protein, and fiber. For adults, it’s considered acceptable for a day or two at most during the worst of symptoms, but not longer. For children, the American Academy of Pediatrics says it’s too restrictive and may actually slow recovery if followed for more than 24 hours.
Those foods are still fine to eat. The problem is eating only those foods and nothing else. Your gut needs nutrients to repair itself, so getting back to a varied diet sooner helps rather than hurts.
What to Avoid
Some foods and drinks are genuinely harder on an irritated stomach. While you’re recovering, it helps to skip:
- Greasy or fried foods: these slow digestion and can trigger nausea
- Dairy (temporarily): lactose can be harder to digest when your gut lining is inflamed, though yogurt is often tolerated better
- Caffeine and alcohol: both can increase stomach acid and worsen dehydration
- Spicy foods: capsaicin irritates an already sensitive stomach lining
- High-fiber raw vegetables: raw broccoli, cabbage, and leafy greens require more digestive effort
- Sugary drinks: full-strength juice or soda can pull water into the intestines and worsen diarrhea
Ginger and Peppermint for Nausea
If nausea is your main problem, ginger is one of the best-studied natural options. Its active compounds improve the rate at which your stomach empties, which helps relieve that heavy, queasy feeling. A meta-analysis published in the American Journal of Obstetrics and Gynecology found that at least 1 gram of ginger is more effective than placebo for preventing nausea and vomiting. You can get that amount from fresh ginger tea (a thumb-sized piece steeped in hot water), ginger chews, or ginger capsules. Ginger ale typically contains too little actual ginger to be effective, so check labels or opt for the real thing.
Peppermint is another option, particularly for cramping or that tight, bloated discomfort. Peppermint oil works by relaxing the smooth muscle in your digestive tract, likely through blocking calcium channels that trigger muscle contractions. Peppermint tea is the gentlest way to try this. If you’re dealing with acid reflux alongside your stomach upset, though, peppermint can relax the valve between your esophagus and stomach, potentially making reflux worse.
Probiotics May Shorten Recovery
If your upset stomach is caused by a stomach virus or food poisoning, probiotics can help you recover faster. A systematic review covering over 1,700 patients found that those who took probiotics had diarrhea that lasted about 23 hours shorter than those who didn’t. The probiotic group was also 30% less likely to have diarrhea lasting beyond 48 hours. Yogurt with live active cultures, kefir, or over-the-counter probiotic supplements are all reasonable options. Look for products that actually list specific bacterial strains on the label rather than vague “probiotic blend” descriptions.
When Symptoms Signal Something More Serious
Most stomach upsets resolve within a few days. But certain symptoms point to something that needs medical attention: a fever above 101°F, blood or pus in your stool, severe diarrhea (more than 10 watery stools per day), or signs of significant dehydration like dry mouth, intense thirst, and weakness. Diarrhea lasting longer than a week also warrants a call to your doctor. These can indicate a bacterial infection that needs treatment or dehydration severe enough to require more than what you can manage at home.