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

1 - 5 of 5

1 of 5 photos

Bill and Jim Germanakos, Season 4
Starting weight: 334 pounds (Bill); 361 pounds (Jim)
Finale weight: 170 pounds (Bill); 175 pounds (Jim)
Pounds lost: 164 (Bill); 186 (Jim)
Percentage of weight lost: 49.10 (Bill); 51.52 (Jim)

The Long Island twins took home a total of $350,000 at the end of Season 4, as Bill nabbed the $250,000 grand prize as the season’s winner, and Jim won the $100,000 at-home prize. Having shrunk their bodies by half and dubbing... more
Bill and Jim Germanakos, Season 4
Starting weight: 334 pounds (Bill); 361 pounds (Jim)
Finale weight: 170 pounds (Bill); 175 pounds (Jim)
Pounds lost: 164 (Bill); 186 (Jim)
Percentage of weight lost: 49.10 (Bill); 51.52 (Jim)

The Long Island twins took home a total of $350,000 at the end of Season 4, as Bill nabbed the $250,000 grand prize as the season’s winner, and Jim won the $100,000 at-home prize. Having shrunk their bodies by half and dubbing themselves the "Weight Loss Twins" at their joint website, Bill now works full-time as a motivational speaker and wellness ambassador, while Jim remains a Long Island police officer. less