Myth: Humans Are Meant to Eat Meat
Many scientists say that humans began eating meat just 10,000 years ago. Dr. T. Colin Campbell, professor emeritus at Cornell University, says that for tens of millions of years before that, our biochemical functionality depended on "the nutrient composition of plant-based foods." Now, research suggests that our bodies were not designed to eat meat: just look at our flimsy teeth and weak nails. "You can't tear flesh by hand, you can't tear hide by hand," notes paleontologist Dr. Richard Leakey.