High-fiber foods have a significant impact on digestion by promoting regular bowel movements and preventing constipation. Fiber adds bulk to the digestive tract, which helps food move smoothly through the intestines. It also supports a healthy gut microbiome, which can enhance nutrient absorption and overall gut health. Moreover, high-fiber foods can aid in weight management by increasing satiety and decreasing overall calorie intake. Examples of these foods include whole grains, legumes, fruits, and vegetables.