The role of fiber in the diet is crucial for digestive health and overall well-being. Fiber aids in regulating bowel movements, preventing constipation, and supporting a healthy gut microbiome. It also helps in maintaining stable blood sugar levels and can lower cholesterol, thus reducing the risk of heart disease. Moreover, high-fiber foods can enhance satiety, limiting overeating and aiding weight management. A diet rich in both soluble and insoluble fiber is essential for optimal health.