Fiber plays a crucial role in cholesterol management by binding to cholesterol in the digestive system, helping to reduce its absorption into the bloodstream. Soluble fiber, in particular, can lower low-density lipoprotein (LDL) cholesterol levels, often referred to as "bad" cholesterol. High-fiber foods, such as oats, legumes, and fruits, not only promote heart health but also support digestive health. This mechanism helps maintain a healthy blood lipid profile, reducing the risk of cardiovascular diseases.