Groundnut Oil Benefits: A popular cooking oil in many parts of the world, groundnut oil is rich in monounsaturated fats and has a nutty flavor. It is a good source of vitamin E and antioxidants, which help protect the body from damage caused by free radicals. These nutrients also help improve the health of the skin and hair. Groundnut oil can be used in many different ways, including frying, baking, and in salad dressings. It can also be added to soups and stews to add flavor. When buying groundnut oil, look for one that is cold-pressed and has a dark color. Avoid oils that have been exposed to light or heat, as they will have lost some of their nutrient content.