Final answer:
Unsaturated fats, specifically monounsaturated and polyunsaturated fats, are considered "healthful." They are primarily found in oils and have been shown to have numerous health benefits.
Step-by-step explanation:
Unsaturated fats are considered "healthful." Most unsaturated fats are liquid at room temperature and are called oils. They can be categorized into monounsaturated fats (e.g., olive oil) that have one double bond and polyunsaturated fats (e.g., canola oil) that have more than one double bond. Consuming monounsaturated fats and polyunsaturated fats with omega-3 fatty acids has been shown to have numerous health benefits.