A heart-healthy diet is designed to promote cardiovascular health by reducing risk factors like high cholesterol, blood pressure, and inflammation. It emphasizes foods rich in nutrients and healthy fats, such as fruits, vegetables, whole grains, lean proteins (like fish and poultry), and healthy fats from sources like nuts, seeds, and olive oil. This diet limits saturated and trans fats, processed foods, added sugars, and excessive sodium, all of which contribute to heart disease. The Mediterranean and DASH diets are popular examples, focusing on balance, portion control, and the inclusion of fiber-rich, antioxidant-packed foods that support long-term heart health.