Fiber is a must for regular bowel movements. But if you have irritable bowel syndrome with constipation (IBS-C), you might worry that filling up on fiber could worsen symptoms such as cramps, gas, and ...

While most people associate fiber with relieving constipation, soluble fiber can actually improve diarrhea symptoms, too. It does this by soaking up water in the GI tract, forming a gel.

Both bananas and apples are good for your gut health. They both contain soluble and insoluble fiber, experts said. Though ...

Insoluble fiber may make diarrhea worse. Insoluble fiber is in fruits, vegetables, whole grain breads and cereals. Psyllium (a natural vegetable fiber) and oat bran are soluble fibers.