A high-fiber diet positively impacts cholesterol levels by binding bile acids and promoting their excretion from the body. This process forces the liver to use circulating cholesterol to produce more bile acids, effectively lowering blood cholesterol levels, particularly LDL (bad cholesterol). Foods rich in soluble fiber, such as oats, beans, and fruits, are particularly effective for this purpose. Moreover, a high-fiber diet can help maintain a healthy weight and improve insulin sensitivity, further benefiting heart health. Consuming adequate fiber is essential for managing cholesterol and reducing the risk of cardiovascular diseases.