How does fiber in food benefit your digestive health?

Fiber benefits digestive health in several key ways. Insoluble fiber adds bulk to stool and speeds up the movement of food through the intestines, which helps prevent constipation and reduces the risk of conditions like diverticular disease. Soluble fiber absorbs water and forms a gel-like substance that slows digestion, helping regulate bowel movements and soften stool. Fiber also acts as a prebiotic, feeding beneficial gut bacteria that ferment it into short-chain fatty acids. These fatty acids nourish the cells lining the colon, reduce inflammation, and help maintain a healthy gut microbiome. A fiber-rich diet is associated with lower risk of colorectal cancer, hemorrhoids, and irritable bowel syndrome.