Healthy fats play a crucial role in a balanced diet by providing essential fatty acids necessary for various bodily functions. They contribute to cell membrane integrity, hormone production, and nutrient absorption, particularly of fat-soluble vitamins (A, D, E, K). Incorporating sources of healthy fats, such as avocados, nuts, and olive oil, can improve heart health, lower bad cholesterol levels, and support overall metabolic functions. Furthermore, healthy fats promote satiety, assisting with weight management.