FAO's definition of food mainly includes rice, wheat and corn. According to data provided by FAO, China, India, Indonesia, Bangladesh, Viet Nam, Thailand, Myanmar, Philippines, Brazil and Japan are 65,438+00 major rice growing countries in the world. The top three rice exporters in the world are Thailand, Vietnam and the United States, and the main rice importers include Bangladesh, the Philippines, Brazil, African countries and some Persian Gulf countries. The top ten wheat producers are China, India, USA, Russian, French, Canadian, German, Ukrainian, Australian and Pakistani. Wheat produced in China and India is basically used for domestic demand. The United States, Canada, Australia and Argentina are the main wheat exporters in the world. In terms of corn production, the United States accounts for nearly half (42.5%) of the world's total corn production, followed by China, Brazil, Mexico, Argentina, India, France and Indonesia. The main exporters of corn are the United States, Argentina and China.