Fiber in the diet supports digestive health by promoting regular bowel movements and preventing constipation. It adds bulk to the stool and enhances gut transit time, facilitating the efficient elimination of waste. Additionally, dietary fiber nourishes the gut microbiota, fostering a healthy gut environment that may reduce the risk of gastrointestinal disorders. A diet rich in fruits, vegetables, legumes, and whole grains provides an adequate intake of fiber necessary for maintaining digestive health.