Brad Culpepper (No. 77) was a 275-pound defensive tackle for three different teams and retired after the 2000 season.
Source: @monicaculpepper
Here is Brad Culpepper with his wife on the show "Survivor." He says it was pretty easy to lose 80 pounds because he simply stopped eating all the extra food needed to maintain his playing weight.
Source: sptimes.com
Alan Faneca was a 320-pound offensive lineman for the Steelers, Jets, and Cardinals, and he last played in 2010.
Alan Faneca has lost 105 pounds since he stopped playing, and he completed his first marathon earlier this year.
SOURCE: @lianefaneca and WashingtonPost.com
Jeff Saturday was a 295-pound center who spent most of his career with the Colts and retired after the 2012 season.
Jeff Saturday, left, now weighs 238 pounds and runs a program to help former players learn about healthy lifestyles.
SOURCE: ESPN.com
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.
In the 1960s, Lions defensive lineman Roger Brown (No. 76) was the first 300-pound player to get regular playing time in the NFL.
Source: WashingtonPost.com
After he retired, he ballooned to nearly 450 pounds before a health scare convinced him to start losing weight. He (No. 76) is now 227 pounds.
Source: WashingtonPost.com
Nate Newton (No. 61), a 320-pound offensive lineman, played most of his 14-year career with the Cowboys before retiring in 1999 and growing to nearly 400 pounds in retirement.
Nate Newton was able to get down to 220 pounds in 2010 after surgery to remove 75% of his stomach.
Source: Dallas Morning-News
JaMarcus Russell struggled with his weight with the Raiders and even more before attempting to get back into the NFL.
A skinnier Tom Nalen was recently inducted into the Broncos' Ring of Fame and credits continuing to work out after his retirement for the weight loss.
Source: TheSunChronicle.com
Prior to his last season in the NFL, LenDale White lost 30 pounds, a result he credited to giving up tequila.
SOURCE: SI.com
After retiring, Matt Birk lost 75 pounds after joining Body By ViSalus, a company dedicated to ending obesity, and Birk is now a model.
SOURCE: Challenge.com
David Pollack weighed as much as 297 pounds as a defensive lineman in college, and he last played in the NFL in 2006 as a 260-pound linebacker for the Bengals.
After a career-ending injury, Pollack is now a 220-pound college football commentator for ESPN. Pollack says he just got smarter about what he eats and when he eats it.
SOURCE: @davidpollack47 and MensFitness.com