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Bob Harper

BOB HARPER is a fitness trainer and health expert who starred as the host of NBC's The Biggest Loser . A three-time #1 New York Times best-selling author, he has his own line of bestselling workout DVDs and an online fitness program called Black Fire. Since his much-publicized heart attack in February 2017, Harper has redoubled his efforts to educate and enlighten his fans about nutrition and its role in building health.