A balanced diet is essential for maintaining cardiovascular health. Nurses should educate patients about the importance of consuming a variety of nutritious foods. Encourage them to limit saturated fats, trans fats, and cholesterol to reduce the risk of heart disease. Emphasize the importance of fruits, vegetables, whole grains, and lean proteins. Encourage the consumption of omega-3 fatty acids found in fish, flaxseeds, and walnuts, which can have protective effects on the heart.