Shocking before and after photos of 15 NFL players who lost a ton of weight in retirement

Brad Culpepper no longer looks like an NFL offensive lineman.Valerie Macon/Getty Images

Many former athletes struggle with weight gain after their playing careers end. This is especially true among football players.

Some players are luckier and actually lose a ton of weight. In many cases, the players are now nearly unrecognizable.

One common theme among many of these players is the position they played.

Most of the players on the following pages were offensive lineman, suggesting those players do more to push their body weight to an extreme, developing dangerous habits like consuming massive numbers of calories to maintain their playing sizes.