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VIDEO PHOTOS 526-pound Michael Ventrella is heaviest Biggest Loser ever

A new season of The Biggest Loser kicked off Tuesday night, marking the beginning of the ninth season of the popular weight loss show. As usual, producers on the show continue to raise the bar and this season features not only the heaviest starting cast of 22 contestants, but it also features the single heaviest contestant ever – 6ft 3in, 526-pound Michael Ventrella from Chicago.