Fats play a crucial role in a balanced diet, serving as a primary source of energy and supporting cell structure. They are essential for absorbing fat-soluble vitamins (A, D, E, K) and producing hormones. Healthy fats, such as those found in avocados, nuts, and olive oil, contribute to heart health by reducing inflammation and improving cholesterol levels. However, it is essential to balance fat intake, avoiding trans and saturated fats that can lead to health issues. Moderation and quality are key.