When you have diarrhea, the best foods are bland, low-fiber, and easy to digest: white rice, bananas, plain toast, boiled potatoes, broth-based soups, and simple proteins like skinless chicken or eggs. These foods give your gut a chance to recover without adding irritation, and some actively help firm up your stool. Equally important is replacing the fluids and electrolytes you’re losing with every trip to the bathroom.
The BRAT Diet: A Starting Point, Not the Whole Plan
You’ve probably heard of the BRAT diet: bananas, rice, applesauce, and toast. It’s been recommended for decades because these four foods are gentle on an irritated digestive system. But there’s no clinical research showing it works better than other bland foods, and sticking to only those four items for more than a day or two can leave you short on protein and key nutrients you need to recover.
Think of BRAT as a foundation. During the first 12 to 24 hours, when your symptoms are at their worst, those four foods are a safe bet. But you can expand beyond them right away. Oatmeal, plain crackers, boiled potatoes, unsweetened dry cereal, and brothy soups are all equally easy to digest. The goal is to eat small amounts frequently rather than forcing large meals.
Foods That Help Firm Up Your Stool
Soluble fiber is your best friend during a bout of diarrhea. Unlike insoluble fiber (the rough, scratchy kind in raw vegetables and whole grains), soluble fiber dissolves in water and forms a gel-like material in your stomach. It absorbs excess water in your intestines and adds bulk to loose stools, helping them solidify.
The best sources of soluble fiber that are also gentle on your gut include:
- Bananas: Rich in both soluble fiber and potassium, a key electrolyte you lose rapidly during diarrhea
- White rice: Easy to digest and starchy enough to help bind watery stool
- Oatmeal: High in soluble fiber, though stick to plain varieties without added sugar
- Applesauce: Contains pectin, a type of soluble fiber that helps thicken stool
- Cooked carrots: Soft, bland, and a good source of soluble fiber once they’re well cooked
Avoid raw fruits and vegetables for now. Cooking breaks down the tough cell walls that can irritate an already sensitive gut.
Adding Protein Back In
Your body needs protein to heal, and you don’t have to wait until you feel completely better to start eating it. The key is choosing lean, simply prepared options. Skinless chicken breast, white fish, eggs, soft tofu, and cottage cheese are all well tolerated. Smooth nut butters can work too, though you should skip them if they seem to make things worse.
Keep preparation simple: baked, boiled, or steamed with minimal added fat. Greasy or fried foods stimulate your intestines and can make diarrhea worse. As your symptoms improve over two to three days, you can gradually add cooked squash (butternut or pumpkin), sweet potatoes without the skin, avocado, and plain yogurt.
Fluids Matter More Than Food
Dehydration is the biggest risk during diarrhea, especially if you’re also vomiting. Every loose stool pulls water, sodium, and potassium out of your body. You can eat all the right foods and still end up dehydrated if you’re not drinking enough.
Water alone isn’t ideal because it doesn’t replace lost electrolytes. The World Health Organization’s oral rehydration solution is simple to make at home: mix half a teaspoon of salt and two tablespoons of sugar into about four cups of water. The sugar helps your intestines absorb the water and sodium more efficiently. Sip it steadily throughout the day rather than gulping large amounts at once.
Other good fluid options include clear broths, coconut water, and diluted fruit juice. Sports drinks can work in a pinch, though many contain more sugar than is ideal. Signs that you’re becoming dehydrated include dark urine, dry mouth, dizziness, and urinating much less than usual. In infants, watch for no wet diapers for three or more hours, no tears when crying, or unusual drowsiness.
Probiotics Can Shorten Recovery
Certain probiotics can cut the duration of acute diarrhea by roughly a day. A large meta-analysis of randomized trials in children found that Saccharomyces boulardii, a beneficial yeast, reduced diarrhea duration by about 1.25 days compared to placebo and significantly lowered the odds of diarrhea lasting two days or longer. Lactobacillus reuteri showed similar benefits.
You can find these strains in supplement form at most pharmacies. Plain yogurt with live active cultures is another option once your stomach can handle dairy, though yogurt contains far fewer organisms than a dedicated probiotic supplement. If you’re choosing a supplement, look for one that specifically lists the strain on the label rather than just “probiotic blend.”
Foods and Drinks to Avoid
Some foods actively pull water into your intestines, making diarrhea worse. This happens when poorly absorbed sugars sit in your gut and draw fluid in by osmosis. The main culprits:
- Dairy milk and ice cream: Lactose is difficult to digest even for people who normally tolerate it, because diarrhea can temporarily reduce the enzyme that breaks it down
- Sugary drinks and fruit juice in large amounts: High fructose loads overwhelm your intestine’s ability to absorb the sugar
- Sugar-free gum and candy: Sugar alcohols like sorbitol, mannitol, and xylitol are notorious for causing watery stools even in healthy people
- Greasy, fried, or heavily spiced foods: These stimulate intestinal contractions and can increase cramping
- Caffeine and alcohol: Both speed up gut motility and contribute to fluid loss
- Raw vegetables, whole grains, nuts, and seeds: High in insoluble fiber, which adds bulk but can also irritate inflamed intestinal walls
A Simple Timeline for Recovery Eating
During the first day, focus on fluids and small portions of the blandest foods: white rice, toast, bananas, broth. Eat only when you feel able to. On days two and three, expand to include simple proteins like eggs, chicken, or fish, along with cooked vegetables like carrots and squash. By days three through five, most people can start reintroducing their normal diet gradually, adding one food at a time and watching for any return of symptoms.
If diarrhea lasts more than two days in adults, involves six or more loose stools per day, comes with a high fever, or produces stools that are black, bloody, or contain pus, those are signs of something more serious than a typical stomach bug. The same applies to children, where you should seek help after just one day of persistent symptoms, especially in infants under 12 months.