Starchy, low-fiber foods like white rice, bananas, applesauce, and plain toast are among the best choices when you have diarrhea. They’re easy to digest and help firm up loose stools. But recovery goes beyond just those basics. The right combination of foods can replace lost electrolytes, restore healthy gut bacteria, and get you back to normal faster.
Why Certain Foods Help
Diarrhea happens when your intestines push food through too quickly for water to be absorbed, or when something draws extra water into the bowel. Foods that help work in a few different ways: they absorb excess water in the gut, they replace minerals your body is losing, or they slow digestion down. Understanding this makes it easier to build meals that actually speed recovery rather than just avoiding everything.
Starchy, Low-Fiber Staples
White rice, plain white toast, plain noodles, and crackers are the foundation of eating well during a bout of diarrhea. These refined starches are easy for your body to break down and they absorb water in the intestine, which helps firm up loose stools. You may have heard of the BRAT diet (bananas, rice, applesauce, toast), and while those four foods are still useful, most experts no longer recommend restricting yourself to only them. A diet that narrow can leave you short on calories and nutrients right when your body needs them for recovery.
A better approach is what some nutritionists call a “white diet”: bananas, white rice, applesauce, white toast, plain noodles, chicken breast, white fish, eggs, soft tofu, cottage cheese, and smooth yogurt. The idea is to stick with bland, low-fat, easy-to-digest foods while still getting enough protein and energy to heal.
Soluble Fiber Foods
Not all fiber makes diarrhea worse. There are two types, and they do opposite things. Insoluble fiber (found in whole grains, raw vegetables, and fruit skins) speeds material through your gut and adds bulk, which is great for constipation but unhelpful when things are already moving too fast. Soluble fiber, on the other hand, dissolves in water and forms a gel-like material that slows digestion down.
Good sources of soluble fiber include oatmeal, peeled and cooked potatoes, bananas, applesauce, and smooth nut butters (if you tolerate them). These foods absorb excess water in the intestine, which helps make watery stool more solid. Pectin, a type of soluble fiber naturally found in apples and bananas, is one reason those fruits show up on every diarrhea recovery list.
Potassium and Sodium Replacement
Every episode of diarrhea flushes out electrolytes, especially potassium and sodium. Losing too much of either can leave you feeling weak, dizzy, or shaky. Replacing them through food is one of the most important things you can do.
For potassium, reach for bananas, peeled and cooked potatoes, coconut water, and diluted fruit nectars. For sodium, broths and soups are ideal because they also deliver fluid. Salted crackers and pretzels work too. Sports drinks contain both electrolytes, though they can be high in sugar, so sipping them slowly and diluting with water helps.
If you want a simple homemade rehydration drink, the formula used in hospitals worldwide calls for 4 cups of water, half a teaspoon of table salt, and 2 tablespoons of sugar. That ratio helps your intestines absorb fluid more efficiently than water alone. Sip it throughout the day rather than drinking large amounts at once.
Lean Protein for Recovery
Your body needs protein to repair the intestinal lining, and skipping it can slow recovery. The key is choosing sources that are tender, well-cooked, and prepared without added fat. Baked or steamed chicken breast, white fish, scrambled or boiled eggs, and soft tofu are all well tolerated. These provide energy without triggering the digestive system the way fatty or heavily seasoned meats would.
Smooth nut butters (peanut or almond) can also work if your stomach handles them, but start with a small amount. Avoid fried proteins, processed meats, and anything cooked in heavy oils or butter.
Probiotic-Rich Foods
Probiotics are live bacteria that help restore the balance of microbes in your gut, and they have solid evidence behind them for diarrhea. A large Cochrane review of clinical trials found that probiotics reduced the average duration of diarrhea by about 30 hours and cut the risk of diarrhea lasting three or more days by roughly a third. Certain strains performed especially well, particularly Lactobacillus GG, which was most effective against rotavirus-related diarrhea in children.
You can get probiotics from food rather than supplements. Plain yogurt with live active cultures is the most accessible option and doubles as a gentle protein source. Look for labels listing live cultures like L. acidophilus or L. bulgaricus. Other options include kefir (a fermented milk drink) and miso soup, which also delivers sodium. If you’re avoiding dairy because of temporary lactose sensitivity (common during diarrhea), a probiotic supplement or non-dairy fermented food like kombucha may be better tolerated.
Foods and Drinks to Avoid
Some foods actively pull water into your intestine, making diarrhea worse. The main culprits fall into a few categories.
- High-fat foods: Fried foods, pizza, fast food, and anything greasy. Fat is harder to digest and can speed up intestinal contractions.
- Caffeine: Coffee, tea, and caffeinated soft drinks stimulate your gut and increase fluid loss.
- Alcohol: Irritates the intestinal lining and worsens dehydration.
- High-sugar foods and drinks: Candy, packaged desserts, sweetened beverages, and concentrated fruit juices. Large amounts of fructose are poorly absorbed and draw water into the bowel, which is exactly how osmotic diarrhea works.
- Sugar alcohols: Sorbitol, mannitol, and xylitol, found in sugar-free gum, candies, and some “diet” products. These are notorious for causing or worsening loose stools even in healthy people.
- Dairy with lactose: Diarrhea can temporarily reduce your ability to digest lactose, even if you normally handle dairy fine. Milk, ice cream, and soft cheeses may make things worse. Yogurt and aged hard cheeses tend to be better tolerated because fermentation breaks down much of the lactose.
- Raw vegetables and high-fiber foods: Salads, raw broccoli, beans, whole-grain bread, and bran cereals. These are healthy foods in general, but their insoluble fiber can aggravate symptoms during an active episode.
A Practical Eating Plan
In the first hours, when nausea or cramping is at its worst, focus purely on fluids: broth, the homemade rehydration solution, diluted juice, or small sips of a sports drink. Don’t force yourself to eat if the thought of food makes you feel worse.
Once your appetite returns, start with small, frequent meals rather than three large ones. A typical day might look like plain oatmeal with a sliced banana for breakfast, chicken broth with white rice and well-cooked carrots for lunch, scrambled eggs on white toast for dinner, and salted crackers or applesauce as snacks between meals. Keep portions small and eat slowly.
As stools begin to firm up, gradually reintroduce your normal diet over two to three days. Add cooked vegetables before raw ones, and bring back dairy and high-fiber foods last. Most people find that their gut tolerates a wider range of foods each day as inflammation settles down. If symptoms return after reintroducing a specific food, give it another day or two before trying again.