U.S. Air Force Staff Sgt. Leon Jackson, an aircraft

U.S. Air Force Staff Sgt. Leon Jackson, an aircraft structural maintenance airman with the New Jersey Air National Guard's 108th Wing throws Brazilian Jiu-Jitsu Professor Chris Matakas during training on Dec. 9. Jackson is proud of the fact that he is a 'no meat athlete,' and is the founder of Vegan Jiu-Jitsu. "I think the best part about being vegan is the inner peace that comes with veganism," said Jackson. "I feel better knowing that my dietary choice reduces my carbon footprint and saves the lives of animals. I also feel the effect in my cardio, I honestly never get tired while training." (U.S. Air National Guard photo by Tech. Sgt. Matt Hecht/Released)