Medical research has proven that diseases and gene mutations associated with organism aging are related to free radical damage. Therefore, maintaining sufficient antioxidants in the body and timely removing free radicals are important means of anti-aging. Experts pointed out that vegetables and fruits play a very important role in the prevention and treatment of some human diseases related to free radical damage and in the anti-aging process. The dietary guidelines of various countries in the world all list the intake of vegetables and fruits as an important content.