Oil is a culinary ingredient that plays a fundamental role in cooking and baking. It is a fat-based substance derived from various sources, such as plants, seeds, nuts, or animals. Common types of cooking oils include olive oil, canola oil, vegetable oil, coconut oil, and sunflower oil. Oils are used for different purposes in the kitchen, such as sautéing, frying, baking, and dressing salads. They provide moisture, enhance flavors, and contribute to the texture of dishes.