A vegetable refers to a plant or fungus that can be cooked into food. Vegetables are one of the essential foods in people's daily diet. Vegetables can provide a variety of vitamins, minerals and other nutrients needed by the human body.

According to the statistics of FAO 1990, 90% of vitamin C and 60% of vitamin A necessary for human body come from vegetables. In addition, there are many phytochemicals in vegetables, which are recognized as effective components beneficial to health. As we all know, nutrients in fruits and vegetables can effectively prevent chronic and degenerative diseases, and they are being discovered by people.