Peanut oil, also known as groundnut oil, is a type of oil that is made from peanuts. It is commonly used as a cooking oil, as well as in a variety of food products, such as margarine and mayonnaise. Peanut oil is high in monounsaturated and polyunsaturated fats, which are considered to be healthy fats. It is also a good source of vitamin E and antioxidants. Peanut oil has a relatively high smoke point, making it suitable for high-heat cooking methods such as frying and saut�©ing. It is also relatively inexpensive and widely available. Some people may be allergic to peanuts or peanut oil, so it is always a good idea to check with a doctor or allergist before using it. It is also worth noting that peanuts are a common allergen, so people with peanut allergies should be cautious when consuming products that contain peanut oil.