Fats and oils are types of lipids that provide energy and support cell growth. They are essential nutrients found in various foods, such as avocados, nuts, and olive oil. Fats are solid at room temperature, while oils are liquid. Both play important roles in the body, including hormone production and nutrient absorption. There are different types of fats, including saturated, unsaturated, and trans fats. Unsaturated fats, found in foods like fish and vegetable oils, are considered healthier options. In contrast, trans fats, often found in processed foods, can increase the risk of heart disease and should be limited in the diet.