Jeff Saturday was a 295-pound center who spent most of his career with the Colts and retired after the 2012 season.
Here is Jeff Saturday at a recent Colts game
Very slim Jeff Saturday @colts game. @indystar pic.twitter.com/rpHNKTx06x
— Matt Kryger (@MattKryger) August 11, 2013
Nate Newton, a 320-pound offensive lineman, played most of his 14-year career with the Cowboys before retiring in 1999
JaMarcus Russell struggled with his weight with the Raiders and even more before attempting to get back into the NFL.
Brad Culpepper (no. 77) was a 275-pound defensive tackle for three different teams and retired after the 2000 season.
Antone Davis (no. 78) was a 330-pound offensive lineman and grew to 475 pounds after he stopped playing in 1997.
Antone Davis was recently a runner-up on NBC's "The Biggest Loser," where he lost more than 200 pounds.
Since he stopped playing, Matt Birk has lost 75 pounds and is now a model.
You can vote for Matt Birk at Challenge.com (via LarryBrownSports)
Alan Faneca was a 320-pound offensive lineman for the Steelers, Jets, and Cardinals and last played in 2010.
David Pollack has lost a lot of weight and is now a college football commentator for ESPN.
via @davidpollack47