Healthy fats, also known as unsaturated fats, include monounsaturated and polyunsaturated fats. These fats are beneficial for the body as they can improve cholesterol levels and support heart health. Sources of healthy fats include avocados, nuts, seeds, olive oil, and fatty fish like salmon. They play a crucial role in the absorption of fat-soluble vitamins (A, D, E, and K) and provide essential fatty acids that the body cannot produce independently. Including healthy fats in a balanced diet contributes to overall health and well-being.