Whereas thought of typically wholesome, high-fiber meals, notably these containing insoluble fiber, ought to be averted or restricted should you’re experiencing nausea or diarrhea, says Haskell. Not like soluble fiber, which helps soak up extra liquid to make stools extra manageable, insoluble fiber doesn’t dissolve in water. As a substitute, it provides bulk to the stool and helps transfer meals via the digestive tract extra rapidly, which may worsen signs like diarrhea.
Insoluble fiber is present in cruciferous greens, like kale, broccoli, cauliflower, and Brussels sprouts, in addition to fruits like blackberries and raspberries. Complete grains, akin to brown rice and whole-grain bread, additionally include important quantities of insoluble fiber.
Janulewicz says that these high-fiber meals may be troublesome to digest and will irritate the intestine, notably throughout a flare-up. “Cooking them makes them gentler, however some sufferers should still must keep away from them,” she says. As a substitute, go for meals with soluble fiber, akin to cooked oats and applesauce, that are typically simpler on the intestine and may help handle diarrhea.