"In the US, 45 percent of corn production is used for biofuels, and another 40 percent goes to animal feed. Globally, more than three-quarters of soybean produc

"In the US, 45 percent of corn production is used for biofuels, and another 40 percent goes to animal feed. Globally, more than three-quarters of soybean production goes to feeding livestock, and since animals are relatively inefficient at turning calories into meat, only a slim share of those calories from soy ever make it into human diets."