When you have diarrhea, the best foods are bland, low-fat, and low-fiber options that are easy for your gut to process: bananas, white rice, applesauce, white toast, plain yogurt, skinless chicken, and oatmeal. These foods help firm up loose stool without irritating your digestive tract further. What you avoid matters just as much as what you eat, so knowing both lists will help you recover faster.
The BRAT Diet and Beyond
The classic starting point is the BRAT diet: bananas, white rice, applesauce, and white toast. These four foods are low in fiber, gentle on the stomach, and unlikely to trigger cramping. Bananas are especially useful because they’re rich in potassium, an electrolyte you lose rapidly during diarrhea. Applesauce contains pectin, a type of soluble fiber found in fruits and berries that helps absorb excess water in the gut and firm up stool.
The BRAT diet was never meant to be your entire diet for days on end. It’s a starting point. As soon as you feel comfortable, you should expand to other bland, low-fat foods to get more calories and nutrition. Good additions include mashed potatoes without the skin, oatmeal, canned peaches, plain noodles, saltine crackers, and pretzels.
Why Soluble Fiber Helps
Not all fiber is the same during a bout of diarrhea. Insoluble fiber (found in raw vegetables, whole grains, and bran) speeds things through your gut and can make loose stool worse. Soluble fiber does the opposite. It forms a gel-like substance that holds water and slows digestion, which has a stool-normalizing effect. When your stool is too loose, soluble fiber firms it up.
The best food sources of soluble fiber when your stomach is sensitive are oatmeal (rich in a specific type of soluble fiber called beta-glucan), bananas, and applesauce. Berries are also high in pectin but may be too acidic for some people mid-episode. Stick with cooked or processed versions of these foods rather than raw ones, since cooking breaks down some of the tougher plant material your gut would otherwise need to work through.
Safe Proteins for Recovery
Your body needs protein to recover, but fatty or heavily seasoned meats will make things worse. The safest options are skinless chicken, white fish, egg whites, soft tofu, and cottage cheese. These are sometimes grouped into what’s called a “white diet” alongside the BRAT staples.
How you prepare these proteins matters. Bake, steam, or poach them. Avoid frying, grilling with heavy sauces, or adding butter and oil. Keep seasoning minimal. The goal is to give your body fuel without forcing your digestive system to deal with fat, which is harder to absorb when your gut is inflamed and can worsen loose stools.
Eating Patterns That Help
Smaller, more frequent meals are easier on your digestive system than three large ones. Eating a big plate of food at once can overwhelm an irritated gut and trigger another round of cramping. Aim for five or six smaller portions spread throughout the day instead. This also helps you stay nourished and maintain energy when you might not have much appetite.
What to Drink
Dehydration is the biggest immediate risk with diarrhea, so replacing fluids is critical. Water is the baseline, but you also need electrolytes (sodium, potassium, and small amounts of sugar to help absorption). Oral rehydration solutions, clear broths, and diluted fruit juices all work. Coconut water is a reasonable natural option since it contains potassium.
Coffee is one of the worst choices. Both regular and decaffeinated coffee stimulate contractions in your colon, which is the last thing you want when stool is already moving too fast. Alcohol also increases intestinal motility and pulls water into the gut. Sugary sodas and energy drinks can worsen diarrhea through an osmotic effect, where high concentrations of sugar draw extra water into the intestines.
Foods That Make Diarrhea Worse
Greasy, spicy, and very sweet foods top the avoid list. Beyond that, several specific categories are worth knowing about:
- Whole grains and high-fiber foods. Brown rice, whole wheat bread, raw vegetables, and bran cereals all contain insoluble fiber that accelerates transit through your gut. Switch to their white, refined counterparts until you recover.
- Sugar alcohols. Sorbitol, mannitol, xylitol, maltitol, and isomalt are poorly absorbed in the small intestine. They drag water into the bowel and get fermented by bacteria, producing gas and loose stool. These are found in sugar-free gum, mints, diabetic products, and naturally in stone fruits (peaches, plums, cherries) and avocados.
- High-fructose fruits. Apples (raw), pears, and mangoes contain high levels of fructose that can be malabsorbed in the same way as sugar alcohols, pulling water into the colon. Applesauce is different because cooking breaks down some of the fructose and fiber.
- Pastries and rich grain dishes. Anything combining grains with high fat or sugar, like croissants, donuts, or muffins, combines multiple triggers at once.
The Dairy Question
Dairy is complicated during diarrhea. When your small intestine is irritated or inflamed, it can temporarily lose some of its ability to produce lactase, the enzyme that breaks down the sugar in milk. This is called secondary lactose intolerance. Undigested lactose passes into your colon, where bacteria ferment it and create gas and fluid, making diarrhea worse.
This doesn’t mean all dairy is off limits. Yogurt and cottage cheese are generally well tolerated because the fermentation process has already broken down much of the lactose. Plain yogurt also contains live bacterial cultures that may support gut recovery. Full glasses of milk, ice cream, and soft cheeses are the bigger offenders. The temporary lactose intolerance resolves once your intestinal lining heals, which typically takes a few days to a couple of weeks depending on the cause.
Probiotics and Fermented Foods
Probiotics can shorten the duration of diarrhea, particularly when it’s caused by an infection. A meta-analysis of studies on a specific probiotic yeast found that it reduced the duration of acute diarrhea in children by roughly 1.6 days on average, with even greater benefit (about 2 days shorter) when the diarrhea was caused by rotavirus. These studies used supplement-form probiotics rather than food sources, so the doses were standardized and higher than what you’d get from a cup of yogurt.
Still, fermented foods like plain yogurt, kefir, and miso provide some beneficial bacteria and are gentle on the stomach. They won’t replace a clinical-grade probiotic supplement, but they contribute to gut recovery while also providing calories and nutrients you need. If you’re considering a probiotic supplement, look for products that specify the strain and dose on the label.
When to Start Eating Normally Again
Once your stool starts to firm up and cramping subsides, gradually reintroduce your normal diet over two to three days. Start by adding cooked vegetables, lean meats with light seasoning, and small amounts of whole grains. If any food triggers a return of symptoms, back off and try again a day later. Your gut lining needs time to regenerate, and pushing too hard too fast can restart the cycle. High-fat foods, raw vegetables, alcohol, and caffeine should be the last things you bring back.