How much more food? Food and feed crop demand will nearly double in the coming 50 years. The two main factors driving how much more food we will need are population growth and dietary change. With rising incomes and continuing urbanization, food habits change toward more nutritious and more varied diets-not only toward increasing consumption of staple cereals but also to a shift in consumption patterns among cereal crops and away from cereals toward livestock and fish products and high-value crops (figures 2 and 3).