Fiber plays a significant role in digestive health by promoting regular bowel movements and preventing constipation. It aids in maintaining a healthy gut microbiome, potentially reducing the risk of gastrointestinal disorders. Additionally, fiber can help control blood sugar levels by slowing down the absorption of carbohydrates, contributing to better insulin sensitivity. A high-fiber diet is also associated with lower cholesterol levels and improved heart health. Overall, adequate fiber intake is essential for optimal digestion and can be obtained from fruits, vegetables, whole grains, and legumes.