Peanut oil is light yellow and transparent, with a clear color and fragrance. It is a kind of edible oil that is easy to digest. Peanut oil contains over 80% unsaturated fatty acid (including 41.2% oleic acid and 37.6% linoleic acid). In addition, the saturated fatty acids, including palmitic acid, stearic acid and peanut acid, were 19.9%. The fatty acid composition of peanut oil is good and easy to digest and absorb. According to foreign information, the use of peanut oil can reduce the cholesterol in the body, and reduce the amount of cholesterol in the plasma. In addition, the peanut oil also contains sterol, wheat germ phenol, phospholipid, vitamin E, choline and other substances beneficial to the human body. Peanut oil is often used to prevent skin wrinkling and aging, protect blood vessel walls, prevent thrombosis, and help prevent arteriosclerosis and coronary heart disease. Choline in peanut oil can also improve the memory of the human brain and slow down brain function.