What's the worst thing to eat when you have diarrhea?

What to Avoid When You Have Diarrhea

When diarrhea strikes, your digestive system is already under stress—so what you eat (or don’t eat) can make a big difference in how quickly you recover. While it’s important to stay hydrated, not all drinks are helpful. Alcoholic beverages and caffeinated drinks like coffee, tea, and certain sodas can actually worsen symptoms by irritating the gut and pulling water into the intestines, making diarrhea more severe.

Another major culprit? Foods and drinks loaded with simple sugars. Fructose, found in many fruit juices and sweetened beverages, and lactose, the sugar in dairy products, can be hard to digest when your gut is compromised. These sugars can draw extra fluid into the intestines, increasing urgency and discomfort.

And don’t overlook sugar-free gum or candies. They often contain sugar alcohols like sorbitol, xylitol, and mannitol—ingredients that can act like laxatives in sensitive digestive systems. Even small amounts may prolong symptoms, so it’s best to skip them until you’re back to normal.

Instead of these irritants, focus on bland, easy-to-digest foods: think bananas, rice, applesauce, and toast (the classic BRAT diet). And above all, drink plenty of clear fluids—water, broth, or oral rehydration solutions—to replace lost electrolytes.

While most cases of diarrhea clear up on their own within a few days, avoiding these trigger foods can help you feel better faster. If symptoms last more than a couple of days or are severe, it’s always wise to consult a healthcare provider.