When you have diarrhea, the best foods to reach for are bland, low-fiber, and easy to digest: white rice, bananas, plain toast, boiled potatoes, and broth-based soups. These foods help firm up loose stools without irritating your gut further. What you avoid matters just as much as what you eat, and most people can transition back to a normal diet within 48 hours.
Start With Fluids, Then Add Bland Foods
Diarrhea pulls water and electrolytes out of your body fast, so hydration comes first. Clear broths, vegetable soup, decaffeinated tea, and oral rehydration solutions should be your priority before you worry about solid food. Sipping steadily throughout the day works better than drinking large amounts at once, which can trigger more cramping.
Once you can keep fluids down, start introducing bland solids. The classic starting point is the BRAT diet: bananas, white rice, unsweetened applesauce, and white toast. Bananas contain starch that helps absorb water in your colon, firming up your stool. White rice and white toast are gentler than their whole-grain versions because the fiber has been stripped away. Applesauce (unsweetened, to avoid extra sugar pulling water into your gut) rounds out the group.
You don’t need to limit yourself to just those four foods, though. Harvard Health notes that sticking strictly to the BRAT diet for more than a day or two can leave you short on protein and other nutrients you need to recover. A broader list of safe options includes:
- Oatmeal (plain, not flavored)
- Boiled or baked potatoes (peeled, no butter or cream)
- Sweet potatoes (plain)
- Saltine crackers or pretzels (a quick sodium boost)
- Skinless baked chicken or turkey
- Boiled eggs
- Plain pasta or noodles
- Chicken noodle soup
- Canned tuna packed in water
- Cream of wheat or rice porridge
The common thread is that these foods are soft, low in fat, low in insoluble fiber, and unlikely to provoke more cramping. Lean proteins like chicken and eggs are especially worth including early on because they give your body the building blocks to repair your gut lining.
Why Yogurt Is the Exception to the Dairy Rule
Dairy products generally make diarrhea worse because lactose (milk sugar) is harder to digest when your gut is inflamed. Yogurt and kefir are the exceptions. The bacterial cultures in these fermented products have already broken down much of the lactose for you, and they deliver live probiotics that can support recovery. Choose low-sugar varieties, since excess sugar can draw water into the intestines and make things worse.
Probiotics in general show real benefit for diarrhea. A large Cochrane review found that probiotics reduced the average duration of diarrhea by about 30 hours and cut the risk of diarrhea still persisting at day three by roughly a third. You can get probiotics from yogurt, kefir, or over-the-counter supplements.
Foods That Make Diarrhea Worse
Some foods actively pull water into your intestines or irritate an already inflamed gut. Avoiding them can be as important as choosing the right ones.
Greasy, fried, and high-fat foods are at the top of the list. French fries, burgers, and fried chicken are difficult to digest under normal circumstances. When your gut is already struggling, the undigested fats pass into your intestines, causing irritation and more loose stools.
Sugar alcohols and artificial sweeteners are another major trigger. Sorbitol, sucralose, and aspartame, commonly found in diet drinks, sugar-free gum, and “light” snack foods, can cause gastrointestinal distress even in people with healthy digestion. During a bout of diarrhea, they’re almost guaranteed to make things worse.
Other foods to skip until you’ve recovered:
- Raw vegetables, especially broccoli, cauliflower, and dark leafy greens (high in insoluble fiber)
- Raw fruits with skin, like apples and berries
- Whole grains, including brown rice and whole wheat bread
- Spicy foods
- Caffeine and alcohol (both increase gut motility and dehydration)
- Milk, ice cream, and cheese (except yogurt and kefir)
How Soluble Fiber Helps
It sounds counterintuitive, but certain types of fiber actually help with diarrhea. The key distinction is between soluble and insoluble fiber. Soluble fiber dissolves in water and forms a gel-like substance in your gut. This gel absorbs excess liquid in the colon and helps normalize stool consistency, whether it’s too loose or too hard. Bananas, oatmeal, applesauce, and peeled potatoes all contain soluble fiber.
Insoluble fiber does the opposite. It adds bulk and speeds things through your digestive tract, which is the last thing you want when you already have diarrhea. That’s why whole grains, raw vegetables, and high-fiber fruits are on the avoid list until your gut settles down.
A Practical Recovery Timeline
Most bouts of acute diarrhea from food poisoning, a stomach virus, or traveler’s diarrhea resolve on their own. Here’s a general progression for getting back to normal eating:
First 6 to 12 hours: Focus on fluids. Clear broths, diluted juice, water, and oral rehydration drinks. Small, frequent sips rather than large gulps.
Hours 12 to 24: Begin adding bland solids from the list above. Small portions. Bananas, plain rice, toast, crackers. If your stomach tolerates these, add a lean protein like boiled egg or plain chicken.
24 to 48 hours: If stools are firming up, gradually expand your diet. Cooked carrots, cooked squash, avocado, fish, and plain pasta are good next steps. Still avoid dairy (other than yogurt), fried foods, and raw produce.
After 48 hours: Most people can resume a normal diet. Reintroduce foods one at a time so you can identify anything that triggers a setback.
Sodium and Electrolyte Replacement
Diarrhea doesn’t just deplete water. It drains sodium, potassium, and other electrolytes that your muscles and organs need to function. Bananas are a natural source of potassium. Saltine crackers, pretzels, and broth-based soups supply sodium. If diarrhea is severe or lasts more than a day, an oral rehydration solution (available at any pharmacy) provides a balanced mix of electrolytes and glucose designed for rapid absorption.
For children, the World Health Organization recommends zinc supplementation (20 mg daily for 10 to 14 days) alongside rehydration to reduce severity and duration of diarrheal episodes. This recommendation applies primarily in settings where zinc deficiency is common.
Signs the Problem Is More Serious
Most diarrhea clears up within a few days with dietary changes and hydration alone. But certain symptoms suggest something beyond a routine stomach bug: diarrhea lasting more than 24 hours without improvement, bloody or black stool, fever above 102°F, inability to keep any fluids down, or unusual confusion and drowsiness. These warrant prompt medical attention, especially in young children and older adults, who become dehydrated faster.