A high-fiber diet improves heart health by regulating cholesterol levels, stabilizing blood sugar, and promoting healthy digestion. Soluble fiber, in particular, binds to cholesterol and aids in its excretion, contributing to lower LDL cholesterol levels. Additionally, a high-fiber diet can help control weight by increasing satiety and reducing overall calorie intake. Foods rich in fiber include whole grains, fruits, vegetables, legumes, and nuts. Incorporating these into the diet supports cardiovascular health and reduces the risk of heart-related diseases over time.