Grapeseed oil is a pressed seed oil derived from the seeds of grapes. It’s a relatively new cooking oil, having only been widely available for the last few decades. It’s high in polyunsaturated fatty acids, such as linoleic acid, and is known for its light, nutty flavor. It’s also popular for its health benefits, including its high levels of antioxidants, which may help protect against chronic diseases like heart disease and cancer.