"Biggest Loser" trainer Bob Harper opened up about his 2017 heart attack, including the reaction of his costar Jillian Michaels.

Bob Harper, who cohosted 12 seasons of The Biggest Loser with Michaels, said in a recent interview with The Guardian that she was not among the alums of the controversial reality competition series who reached out to him after he suffered a heart attack.

The Biggest Loser staple Bob Harper has revealed that former co-star Jillian Michaels never reached out after he suffered a massive, near-fatal heart attack.