Eddie Lacy lived with P90X founder Tony Horton

GREEN BAY, Wis., May 27 (UPI) -- Green Bay Packers running back Eddie Lacy took the term 'gym rat' to new heights this offseason.

After Packers coach Mike McCarthy said that Lacy couldn't play at the weight he was last season, Lacy took it upon himself to shed the pounds. Lacy decided to start the P90X program.

He even lived with P90X founder Tony Horton for two months, according to ESPN.

Lacy, 25, worked out with Horton in Jackson Hole, Wyoming and Los Angeles. Horton hopes to reunite with Lacy before July's training camp.

Lacy rushed for 758 yards and three touchdowns on 187 carries last season in 12 games for the Packers.

Horton and Lacy woke up at 8 a.m. for their workouts. The duo inhaled a breakfast of protein shakes, consisting of: protein powder, egg whites, blueberries, strawberries, cashews, and super greens.

"I got him on a lot of the super greens," Horton told ESPN. "It usually tasted like dirt, to be honest. That took a little adapting to. But he got it. There was no hesitation."

The actual workouts consisted of plyometrics, cardio, boxing, basketball, yoga, shoveling snow, and more, according to ESPN.

Lacy allegedly played at 260-pounds last season, but currently looks to be somewhere above 240-pounds.

"I knew that he had a belly when he started and he didn't have one when he left," Horton told the Milwaukee Journal Sentinel. "He had much bigger arms, he had much better endurance and his agility had improved tenfold."