During his playing days, offensive linemen Matt Birk weighed in at a whopping 310 pounds.
Despite being a 6th-round pick, Matt Birk put together an impressive NFL career, spending 11 seasons with the Vikings and a few more with the Ravens, going to six Pro Bowls and winning a Super Bowl ring along the way.
After his retirement, he became involved with a company called Body By ViSalus, which provides people with products and a plan to live healthier lives.
NFL weight: 310 pounds
Rookie year: 1998