what is vegetable oil from
For this reason, vegetable oils that are solid at room temperature are sometimes called vegetable fats. Vegetable oils are composed of triglycerides, as contrasted with waxes which lack glycerin in their structure. Although many plant parts may yield oil, in commercial practice, oil is extracted primarily from seeds. On food packaging, the term vegetable oil is often used in ingredients lists instead of specifying the exact plant being used.