Dannielle "Danni" Allen, a 26-year-old advertising account coordinator from Illinois, has won Season 14 of "The Biggest Loser."

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Allen was presented with the $250,000 grand prize on Monday night's finale.

She began the season weighing 258 pounds and lost 121 pounds, 46.9 percent of her body weight.

The runner up among the three finalists was 25-year-old pharmaceutical representative Jeff Nichols, who began the show weighing 388 pounds and ended at 207 pounds.