Final answer:
Unsaturated fats, including monounsaturated and polyunsaturated fats, are liquid at room temperature. Consuming a diet rich in unsaturated fats, especially those with omega-3 fatty acids, is associated with lower cholesterol levels and a lower risk of heart disease.
Step-by-step explanation:
Unsaturated fats, including monounsaturated and polyunsaturated fats, are liquid at room temperature. Monounsaturated fats, such as olive oil, have one double bond in their fatty acid chains, while polyunsaturated fats, like canola oil, have multiple double bonds. Consuming a diet rich in unsaturated fats, especially those with omega-3 fatty acids found in fish like salmon, is associated with lower cholesterol levels and a lower risk of heart disease.