Vegetable Oil is a viscous liquid that is often derived from vegetables, seeds, and leaves. Hydrogenation is a process that alters the melting point of oils, making them solid at higher temperatures. Because it is hydrogenated, it contains saturated fats. Soybean oil is a vegetable oil extracted from the seeds of the soybean. It is one of the most widely consumed cooking oils. Palm oil, which has a fatty acid content that is more stable at high heat than other vegetable oils, is the oil obtained from the fruit of a palm tree. Cottonseed oil is mainly extracted from the seeds of two cotton plant species.