Saturated fats are typically solid at room temperature and are found in animal products like butter, cheese, and meat, as well as some plant oils like coconut oil. They have no double bonds between carbon atoms in their fatty acid chains, which makes them stable but can contribute to higher cholesterol levels when consumed in excess. Unsaturated fats, on the other hand, are usually liquid at room temperature and are found in foods like olive oil, avocados, and nuts. They contain one or more double bonds in their fatty acid chains, which can help lower bad cholesterol levels and provide health benefits when included in a balanced diet.