Fiber is known to have a positive impact on cholesterol levels in the body. Soluble fiber, found in foods like oats, beans, and fruits, binds to cholesterol in the digestive system, helping to remove it from the body and lowering overall cholesterol levels. This process can reduce the risk of heart disease and improve overall cardiovascular health. Additionally, a high-fiber diet supports digestive health and promotes feelings of fullness, aiding in weight management.