Fiber plays a vital role in digestive health by promoting regular bowel movements and preventing constipation. It adds bulk to the stool, facilitating its passage through the intestines. A high-fiber diet can also support the growth of healthy gut bacteria, which is crucial for gut microbiome balance. Additionally, fiber can help manage weight by providing a feeling of fullness, thereby reducing overall calorie intake. Furthermore, it lowers the risk of digestive disorders, such as diverticulitis, and supports heart health by helping to manage cholesterol levels.