The most important thing you can do for diarrhea is replace the fluids and electrolytes your body is losing. Most cases of acute diarrhea resolve on their own within two to three days, but dehydration is the real danger, especially for young children and older adults. Beyond staying hydrated, eating the right foods, avoiding the wrong ones, and using the right over-the-counter products can all speed your recovery.
Fluids and Electrolytes Come First
Every loose stool pulls water, sodium, and potassium out of your body. Plain water alone won’t replace those electrolytes, so you need drinks that contain some salt and sugar. Oral rehydration solutions, available at any pharmacy, are designed with a precise balance of glucose and sodium that helps your intestines absorb water more efficiently. The World Health Organization considers these solutions the gold standard for rehydration during diarrheal illness.
If you don’t have a rehydration solution on hand, clear broths, diluted fruit juices, and sports drinks can fill the gap for mild cases. Sip small amounts frequently rather than drinking large volumes at once, which can trigger more cramping. Avoid coffee, alcohol, and full-strength apple or pear juice, all of which can make diarrhea worse.
You can spot dehydration early by watching for dry mouth, dark urine, reduced urination, dizziness, and excessive thirst. A simple check: pinch the skin on your forearm. If it stays tented for a moment instead of snapping back immediately, you’re likely dehydrated and need to increase your fluid intake.
What to Eat (and What to Skip)
You’ve probably heard of the BRAT diet: bananas, rice, applesauce, and toast. It’s a fine starting point for the first day or two, but Harvard Health Publishing notes there’s no reason to restrict yourself to just those four foods. A broader range of bland, easy-to-digest options gives your body more of the protein and nutrients it needs to recover. Good choices include brothy soups, oatmeal, boiled potatoes, crackers, and unsweetened dry cereals.
Once your stomach starts to settle, you can expand to cooked carrots, sweet potatoes without the skin, butternut squash, avocado, eggs, skinless chicken or turkey, and fish. These are all gentle on your digestive system while providing real nutritional value.
Certain foods and ingredients actively make diarrhea worse. Sugar alcohols like sorbitol, xylitol, and mannitol are poorly absorbed in the gut. They accumulate in the colon, increase osmotic pressure, and draw water into the intestines, essentially acting as laxatives. These sweeteners show up in sugar-free gum, diet candies, protein bars, and some “no sugar added” foods, so check labels if your diarrhea isn’t improving. Dairy products, greasy or fried foods, raw vegetables, and high-fiber whole grains can also aggravate symptoms and are best avoided until you’ve fully recovered.
Over-the-Counter Medications
Two main types of OTC products treat diarrhea, and they work differently.
Loperamide (sold as Imodium) slows intestinal movement, giving your body more time to absorb water. The standard adult dose is 4 mg after your first loose stool, then 2 mg after each additional unformed stool, up to a maximum of 16 mg in 24 hours. It should not be used in children under 2 years old due to risks of respiratory depression and serious cardiac side effects. Loperamide works well for watery, non-bloody diarrhea but isn’t appropriate if you have a high fever or bloody stools, which could signal a bacterial infection that needs different treatment.
Bismuth subsalicylate (the active ingredient in Pepto-Bismol) reduces inflammation in the intestinal lining and has mild antimicrobial properties. It’s effective for traveler’s diarrhea and general stomach upset. However, it contains a compound related to aspirin, so it’s not safe for children under 12 due to the risk of Reye’s syndrome, and it should be avoided by people with bleeding disorders, kidney disease, stomach ulcers, or gout. Women who are breastfeeding should also avoid it.
Ginger and Other Home Remedies
Ginger has a long track record in traditional medicine for calming the digestive tract. It stimulates digestive secretions and can help relieve gastrointestinal discomfort. Clinical reviews suggest that around 2,000 mg of ginger daily may reduce intestinal inflammation, particularly in people with irritable bowel syndrome or inflammatory bowel disease. Ginger tea, made by steeping fresh sliced ginger in hot water, is a simple and gentle option when your stomach is unsettled.
Chamomile tea and peppermint tea are also commonly used to soothe digestive symptoms. While the clinical evidence for these is less robust than for ginger, they’re safe for most people and can help you stay hydrated at the same time.
Probiotics for Recovery
Probiotics can help restore the balance of beneficial bacteria in your gut, particularly after a bout of infectious diarrhea or antibiotic-associated diarrhea. Yogurt with live active cultures is the most accessible source. Probiotic supplements containing Lactobacillus or Saccharomyces strains have the most evidence behind them for shortening diarrhea duration. They won’t stop diarrhea immediately, but they can shave a day or so off your recovery time.
Diarrhea in Children
Children dehydrate faster than adults, so fluid replacement is even more critical. Continue breastfeeding or formula feeding if the child is an infant. For older children, oral rehydration solutions are the best option. The WHO recommends zinc supplementation for children with diarrhea: 20 mg per day for 10 to 14 days, or 10 mg per day for infants under six months. Zinc has been shown to reduce the duration and severity of diarrheal episodes in children.
Watch for warning signs that need medical attention: diarrhea that doesn’t improve within 24 hours, no wet diaper in three or more hours, fever above 102°F, bloody or black stools, and unusual sleepiness or irritability. A sunken appearance around the eyes, cheeks, or abdomen also signals significant dehydration.
Signs You Need Medical Attention
Most diarrhea clears up on its own, but certain symptoms mean something more serious is going on. Adults should see a doctor if diarrhea lasts more than two days without improvement, if stools are bloody or black, if fever exceeds 102°F, or if signs of dehydration develop despite drinking fluids. Severe abdominal or rectal pain also warrants evaluation. If you’re having more than 10 bowel movements a day, or losing fluid faster than you can replace it, that’s considered severe diarrhea and may require medical treatment to rehydrate safely.