High-fiber diets can benefit cholesterol levels by helping to lower low-density lipoprotein (LDL) cholesterol, often referred to as "bad" cholesterol. Soluble fiber, found in foods like oats, beans, and fruits, binds to cholesterol in the digestive system and helps to remove it from the body. This can result in improved heart health and a reduced risk of cardiovascular disease. Additionally, high-fiber diets promote satiety and aid in weight management, contributing to overall wellbeing.