What Can I Eat When I Have an Upset Stomach?

Sticking to plain, soft, low-fat foods gives your stomach the best chance to settle down. White rice, bananas, plain toast, broth, and applesauce remain the go-to options for good reason: they require minimal digestive effort and are unlikely to trigger further nausea or cramping. But the full picture of what helps and what hurts goes well beyond that familiar short list, and a few widely repeated tips actually deserve more nuance.

Why Cooked, Soft Foods Sit Better

When your stomach is already irritated, anything that demands heavy-duty digestion can make symptoms worse. Cooking and mechanically breaking down food before you eat it does some of your stomach’s work in advance. Research on digestion energy costs has found that cooking food reduces the metabolic effort of digestion by about 13%, grinding it reduces the effort by a similar amount, and doing both cuts the digestive workload by roughly 23%.1PubMed. Cooking and grinding reduces the cost of meat digestion That is why well-cooked, soft foods feel so much gentler than anything raw, crunchy, or chewy when your gut is struggling.

This principle is the logic behind the classic “BRAT” approach (bananas, rice, applesauce, toast). Those four foods share three things: they are low in fat, low in fiber, and already partially broken down by cooking or ripening. You do not have to follow the acronym literally. Anything that fits the same profile works: plain oatmeal, boiled potatoes without skin, steamed chicken breast, soft-cooked eggs, or simple noodles in broth. The common thread is that you are keeping meals bland and easy to process.

The Best Specific Foods to Reach For

Some foods go beyond being merely tolerable and actually help calm your stomach.

  • White rice: Easy to digest, binds loosely in the gut, and provides simple carbohydrate energy without provoking cramping. It is one of the safest first foods after a bout of vomiting or diarrhea.
  • Bananas: A ripe banana is soft, naturally low in acid, and supplies potassium, which you lose quickly during vomiting or diarrhea. It also contains pectin, a soluble fiber that can help firm up loose stools without irritating the gut lining.
  • Plain toast or crackers: Dry starch absorbs excess stomach acid and gives you calories without fat. Avoid butter or heavy spreads until you feel more settled.
  • Broth-based soups: Chicken or vegetable broth replaces fluids and electrolytes and is easy to sip slowly, which matters when eating a full meal feels like too much.
  • Applesauce: Cooked apples are gentler than raw ones, and like bananas, applesauce provides pectin that can help with loose stools.
  • Boiled or baked potatoes: Plain potatoes without skin are starchy, bland, and a good source of potassium. Skip the sour cream and cheese until your stomach is back to normal.

If you tolerate these well, you can gradually add lean proteins like baked chicken or steamed fish. The key is to reintroduce complexity slowly and pay attention to how your body responds.

Ginger, Peppermint, and Chamomile

Three traditional remedies have real science backing them up, and all three are available as simple teas or in other easy-to-consume forms.

Ginger has the strongest evidence for nausea specifically. Compounds in ginger called gingerols and shogaols speed up gastric emptying and stimulate stomach contractions, which helps when food feels like it is sitting in your stomach like a brick.2PubMed. Can nausea and vomiting be treated with ginger extract? Ginger tea, ginger chews, or even flat ginger ale (let it go flat first so the carbonation does not add bloating) are all reasonable options. If you are dealing with nausea that makes eating feel impossible, sipping ginger tea between attempts at solid food can help you turn the corner.

Peppermint works through a different mechanism. It acts as a smooth-muscle relaxant in the digestive tract, reducing cramping and spasms by blocking calcium channels in gut muscle cells.3PubMed Central. Review article: The physiologic effects and safety of Peppermint Oil and its efficacy in irritable bowel syndrome and other functional disorders4PubMed. The mechanism of action of peppermint oil on gastrointestinal smooth muscle. An analysis using patch clamp electrophysiology and isolated tissue pharmacology in rabbit and guinea pig If your upset stomach involves crampy abdominal pain or a churning feeling, peppermint tea may offer more relief than ginger. One caveat: if you have acid reflux, peppermint can relax the valve between your esophagus and stomach and actually worsen heartburn. So reach for ginger instead if reflux is part of the picture.

Chamomile is the mildest of the three but has a long history of use for stomach complaints. The dried flowers contain terpenoids and flavonoids that have been associated with relief from gastrointestinal discomfort, muscle spasms, and inflammation.5PubMed Central. Chamomile: A herbal medicine of the past with bright future A warm cup of chamomile tea before bed can be a good choice when your stomach is unsettled enough to interfere with sleep.

Staying Hydrated Without Making Things Worse

Dehydration is the biggest real risk from most short-term stomach upsets, especially those involving vomiting or diarrhea. Replacing lost fluid matters more than eating solid food in the first several hours.

Plain water works, but your intestines absorb water more efficiently when it comes with a little sodium and glucose. This is the principle behind oral rehydration solutions: both sodium and glucose activate a cotransporter in the intestinal lining that pulls water across with them.6PubMed Central. Cotransport of water by the Na+/glucose cotransporter7Scientific Reports. Potency of Oral Rehydration Solution in Inducing Fluid Absorption is Related to Glucose Concentration You do not need to buy fancy hydration packets. A simple homemade version is water with a pinch of salt and a small amount of sugar, or you can sip diluted fruit juice alternated with salty broth. The key is keeping the sugar concentration modest; too much sugar in a drink can actually pull water into the gut and worsen diarrhea rather than help.

Sip slowly rather than chugging. If you are vomiting, try small sips every few minutes instead of a full glass at once. Ice chips or frozen fruit bars can help if even sipping triggers nausea. Avoid caffeinated drinks, which can stimulate the gut and make cramping worse, and skip alcohol entirely until you are fully recovered.

Temperature of Your Food and Drinks

You might have heard that warm liquids are soothing for an upset stomach, and there is some truth to this beyond simple comfort. Research on gastric emptying has found that very cold and very warm drinks both empty from the stomach more slowly than body-temperature liquids, but cold drinks appear to slow things down the most.8PubMed Central. Effect of meal temperature on gastric emptying of liquids in man A separate study found that ice-cold water reduced the frequency of stomach contractions compared to warm water.9PubMed Central. The effects of water temperature on gastric motility and energy intake in healthy young men

What does this mean in practice? If your problem is nausea or a feeling of fullness, ice-cold drinks might slow down an already sluggish stomach even further. Room temperature or mildly warm liquids are a safer bet. If your problem is cramping or things moving through too fast (diarrhea), the slowing effect of cool liquids might actually help. Most people do fine with whatever temperature feels comfortable, but if you have noticed that icy drinks make you feel worse, the physiology backs up your instinct.

What to Avoid While You Are Recovering

Knowing what not to eat can be just as useful as knowing what to eat. A few categories of food reliably make an irritated stomach feel worse.

Fatty and greasy food is the most common trigger. Research on people with chronic stomach complaints has found that symptoms like fullness and discomfort were directly related to the amount of fat consumed, and that reducing fat intake improved outcomes.10Elsevier / Clinical Gastroenterology and Hepatology. Relationship between symptoms and dietary patterns in patients with functional dyspepsia Fat slows gastric emptying, meaning food sits in your stomach longer. When your stomach is already struggling, that extra time translates into more nausea and bloating. So fried food, cheese, creamy sauces, and rich desserts should all wait.

Spicy food is another obvious one to skip. Capsaicin, the compound responsible for heat in chili peppers, activates pain receptors in the gut lining and triggers the release of neuropeptides involved in visceral pain signaling.11PubMed Central. Capsaicin, the Spicy Ingredient of Chili Peppers: Effects on Gastrointestinal Tract and Composition of Gut Microbiota at Various Dosages When your stomach lining is already inflamed or irritated, adding a chemical that directly stimulates pain receptors is not going to help.

Sugar alcohols, found in many sugar-free gums, candies, and protein bars, are a sneakier culprit. Compounds like xylitol, sorbitol, and mannitol are poorly absorbed in the small intestine, and in people who are not accustomed to them, they pull water into the gut and cause osmotic diarrhea, gas, and bloating.12PubMed Central. Gastrointestinal Disturbances Associated with the Consumption of Sugar Alcohols with Special Consideration of Xylitol: Scientific Review and Instructions for Dentists and Other Health-Care Professionals If you are reaching for mints or gum to settle your stomach, check the label. Sugar-free versions sweetened with these polyols can make things noticeably worse.

Other things worth avoiding during the acute phase: raw vegetables (harder to digest than cooked), citrus fruits and tomato-based foods (acidic), carbonated beverages (can add gas and bloating), and large portions of anything. The same study on stomach discomfort and diet found that symptoms correlated with overall energy intake, meaning simply eating too much at once was itself a trigger.10Elsevier / Clinical Gastroenterology and Hepatology. Relationship between symptoms and dietary patterns in patients with functional dyspepsia

Eat Small and Eat Often

Portion size matters as much as food choice. Eating five or six small meals or snacks throughout the day puts less demand on your stomach at any one time compared to three regular-sized meals. This is especially true when nausea is your main symptom, because a too-full stomach intensifies the urge to vomit. Start with just a few bites. If those stay down for 20 to 30 minutes, have a few more. This paced approach is more effective than trying to force yourself through a normal plate of food.

Some people find it helpful to separate solids and liquids, drinking fluids between meals rather than with them. This prevents the stomach from becoming overly full and reduces the sloshing sensation that can trigger nausea. It is not a universal fix, but it is worth trying if eating and drinking together seems to make you feel worse.

When to Bring Fiber Back

During the worst of an upset stomach, especially if diarrhea is involved, low-fiber foods are easier to tolerate. But as you start to recover, gradually reintroducing certain types of fiber can actually help normalize your digestion.

The type of fiber matters a lot. Soluble fiber, found in foods like oatmeal, ripe bananas, and applesauce, forms a gel-like consistency that can help firm up loose stools by holding onto water in the gut.13PubMed. Understanding the Physics of Functional Fibers in the Gastrointestinal Tract: An Evidence-Based Approach to Resolving Enduring Misconceptions about Insoluble and Soluble Fiber Clinical experience has shown that modest amounts of soluble fiber can measurably improve stool consistency in people experiencing diarrhea.14Jurnal Plastik Rekonstruksi. Dietary Soluble Fiber Improved Fecal Consistency in Burned Patients with Diarrhea This is one reason bananas and oatmeal are so commonly recommended for stomach issues: they deliver soluble fiber in a gentle, low-irritation package.

Insoluble fiber, on the other hand, is the rough stuff found in raw vegetables, whole wheat, seeds, and skins. Coarse insoluble fiber physically irritates the gut lining and stimulates water secretion, which is helpful for constipation but counterproductive when your stomach is already in distress.13PubMed. Understanding the Physics of Functional Fibers in the Gastrointestinal Tract: An Evidence-Based Approach to Resolving Enduring Misconceptions about Insoluble and Soluble Fiber Save the salads, bran cereal, and raw carrots for when you are feeling genuinely well again.

Probiotics and Getting Your Gut Back on Track

If your upset stomach was caused by a stomach bug or food poisoning, your gut bacteria have probably taken a hit. Probiotics, whether from supplements or fermented foods, can help shorten the recovery period. The strain with the most evidence for acute diarrhea is Lactobacillus rhamnosus GG, which has been shown to reduce the duration of infectious diarrhea by about a day.15PubMed Central. A Gastroenterologist’s Guide to Probiotics That might not sound dramatic, but when you are dealing with a stomach bug, cutting a full day off the misery is meaningful.

A meta-analysis on probiotics for irritable bowel syndrome found that probiotic therapy improved overall symptoms and quality of life compared to placebo, and that single-strain probiotics at lower doses tended to outperform multi-strain cocktails.16PubMed Central. Effects of probiotic type, dose and treatment duration on irritable bowel syndrome diagnosed by Rome III criteria: a meta-analysis The takeaway is that more strains and higher doses are not necessarily better. A simple yogurt with live cultures (if you can tolerate dairy), kefir, or a single-strain supplement is a reasonable addition once you can keep food down.

Timing matters here. Do not bother with probiotics while you are actively vomiting, because they will not stay in your system long enough to do anything. Introduce them once you have moved past the acute phase and are starting to eat solid food again.

Temporary Lactose Problems After a Stomach Bug

One of the more frustrating experiences after recovering from gastroenteritis is discovering that dairy suddenly does not agree with you. This is genuinely common and has a straightforward explanation. Viral stomach bugs can damage the cells lining the small intestine that produce lactase, the enzyme needed to digest the sugar in milk. The resulting temporary lactose intolerance can last for days to weeks after the infection itself has cleared.17PubMed Central. Lactose intolerance and gastrointestinal cow’s milk allergy in infants and children – common misconceptions revisited

If milk, ice cream, or soft cheese suddenly gives you gas, bloating, or diarrhea after a stomach bug, this is probably why. It does not mean you have developed permanent lactose intolerance. As the intestinal lining heals, lactase production typically returns to normal. In the meantime, fermented dairy like yogurt and aged cheese tends to be better tolerated because the fermentation process breaks down much of the lactose. Plant-based milks are another easy workaround for the short term. If the sensitivity lasts longer than a few weeks, it is worth mentioning to your doctor, but most people find it resolves on its own.

A Sample Timeline for Recovery Eating

There is no strict protocol, but a loose timeline helps. During the first several hours of active nausea or vomiting, focus only on small sips of fluid: water, diluted juice, broth, or an oral rehydration drink. Once you have gone a few hours without vomiting, try a few bites of something truly bland: plain crackers, a small piece of toast, or a few spoonfuls of white rice. If that stays down, gradually expand to soft, low-fat foods over the next day or two: bananas, boiled potatoes, plain pasta, steamed chicken.

By day two or three (assuming symptoms are improving), most people can start cautiously reintroducing normal foods. Add one thing at a time so you can identify what bothers you and what does not. Dairy and high-fat foods are usually the last things to reintroduce, because they are the most likely to cause a setback. If you are still unable to keep fluids down after 24 hours, or if symptoms are worsening rather than gradually improving, that is a signal to call your doctor rather than trying to manage with diet alone.

The whole process usually takes two to four days for a routine stomach bug. Longer recovery is normal after food poisoning or if an underlying condition like gastritis is involved. Being patient with your stomach and reintroducing foods gradually, rather than trying to return to normal meals the moment you feel slightly better, is the single most common piece of advice that people ignore and then regret.