Vegetarian is not the Most Efficient

A study completed by Cornell has found that while a vegetarian diet uses the least land, it is not the most efficient diet. A diet that includes a small amount of animal products can be feed more people per acre. This is because the land required to produce a vegetarian diet must all be rich, high-producing land, whereas pasture land can be lower quality. There is much more land suitable for pasture, and crop rotation includes time as pasture. Animals can make use of this land to produce products that humans can use, thus increasing the utilization of the land, feeding more people. Read more.