Mike Tyson - It may surprise you that this former heavyweight championship boxer fuels his body with tofu rather than red meat. In an interview with Oprah Winfrey earlier this year, he explained how veganism saved his life. “I was so congested from all the drugs and bad cocaine, I could hardly breathe, [I had] high blood pressure, [was] almost dying [and had] arthritis. And once I became a vegan all that stuff diminished.” (Photo: Ethan Miller/Getty Images)