To feed 4 billion more, skip meat, milk and eggs, study says

The lab-grown burger taste-tested Monday in London is billed as one way to avert a looming food crisis by freeing up the agricultural resources used to feed billions of cattle each year. Another way to avert the crisis is to stop eating animal products altogether, according to a recent study.

In fact, “we find that doing a complete radical shift away from grain-fed animals, and stop producing biofuels, that you can increase calorie availability enough for 4 billion people,” Emily Cassidy, a researcher at the Institute on the Environment at the University of Minnesota, told NBC News.