Whether the world's food demand can be balanced depends on the speed of population and economic growth. Population growth will lead to an increase in food intake; on the other hand, economic growth will increase the consumption of livestock products and change people's food structure, thus affecting global Grain demand has an impact. Knowing from this? ['Population growth will affect global cereal demand.', 'Changing food structure will reduce global cereal demand.', 'Economic growth can reduce global cereal demand.', 'Population growth will lead to an increase in world consumption of livestock products.']