This week, celebrity trainer Bob Harper told VegNews that he has gone vegan, cutting all animal products out of his diet, and shared that the switch to a cruelty-free diet has improved his health. “I enjoy living a plant-based diet because it makes me feel clear headed and strong, not to mention my genetically high cholesterol dropped more than 100 points. That was all the motivation I needed,” says Harper. Famous for helping Americans slim down on NBC’s The Biggest Loser, Harper has been a longtime vegetarian, often promoting meat-free recipes. In addition to helping stars get fit and contestants shed pounds, the 44-year-old vegan trainer also teaches exercise classes through Crunch gym and has his own series of workout videos titled Bob Harper’s Inside Out Method.