If we all ate a plant-based diet, we could feed ourselves on a small fraction of the land and grains that eating an animal-based diet requires. For example, researchers estimate that 2.5 acres of land can meet the food energy needs of twenty-two people eating potatoes, nineteen people eating corn, twenty-three people eating cabbage, fifteen people eating wheat, or two people eating chicken or dairy products, and only one person eating beef or eggs.