5 Most Dramatic 'Biggest Loser' Transformations

Jillian Michaels returns for the first time since Season 11, and 15 adult contestants will be joined by three teenagers hoping to change their lifestyles -- and possibly save their own lives, in some cases -- as the 14th season of "The Biggest Loser" kicks off Jan. 6 (NBC, 9 PM). In honor of the show's return, here are five of the most dramatic and inspirational transformations in the reality series' history. — Kimberly Potts, Yahoo! TV

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Shay Sorrells, Season 8
Starting weight: 476 pounds
Finale weight: 304 pounds
Pounds lost: 172
Percentage of weight lost: 36.13

She began her season with the heaviest starting weight of any female contestant in "Biggest Loser" history, but the social worker, motivational speaker, and mom shed an incredible one-third of her weight and now chronicles her ongoing pursuit of a healthy lifestyle at her blog, ShaySorrels.com. Her accomplishment on the ... more
Shay Sorrells, Season 8
Starting weight: 476 pounds
Finale weight: 304 pounds
Pounds lost: 172
Percentage of weight lost: 36.13

She began her season with the heaviest starting weight of any female contestant in "Biggest Loser" history, but the social worker, motivational speaker, and mom shed an incredible one-third of her weight and now chronicles her ongoing pursuit of a healthy lifestyle at her blog, ShaySorrels.com. Her accomplishment on the show also inspired Subway to offer her $1,000 for every pound she dropped between the Season 8 and Season 9 finales, and she appeared at the Season 9 ender to reveal an additional weight loss of 52 pounds. less