High-fiber foods positively affect digestion by promoting regular bowel movements and preventing constipation. Soluble fiber absorbs water, forming a gel-like substance that aids in slowing digestion, which can help regulate blood sugar levels. Insoluble fiber adds bulk to the stool, encouraging its passage through the digestive tract. Furthermore, a fiber-rich diet supports a healthy gut microbiome, enhancing nutrient absorption and overall gut health. Incorporating various high-fiber foods can lead to improved digestive health and a lower risk of gastrointestinal disorders.