Kevin Federline leaving a liquor store in Chatsworth, CA (1/27)

While on Access Hollywood earlier this week to promote his appearance on VH1's Celebrity Fit Club, Kevin Federline revealed why he got so damn fat after splitting from Britney Spears -- and it wasn't Twinkies and Häagen-Dazs . . . well actually it was Twinkies and Häagen-Dazs, but that wasn't the root cause. The root cause was sadness :(  From Access Hollywood:

Kevin, who will next be seen as a contestant on VH1’s “Celebrity Fit Club: Boot Camp,” told Maria that despite the rumors, he did not gain weight to secure a spot on the reality show.

“They called me and they asked me if I wanted to do it and I had maybe 24 hours to decide because the show started taping the next day after that weekend,” he said. “It just couldn’t have come at a better time.”

Married to pop star Britney Spears for two years, Kevin revealed that depression played a big part in his overeating.

“Once you get depressed, you don’t really feel like doing anything. You’re kind of discouraged about yourself and then the weight gain too, or that makes me more depressed,” he said. “I mean, it’s a combination of all of those things.”

What the hell does K-Fed have to be depressed about? He doesn't have to work, he has tons of money pouring in every month, and he spends most of his days either at the strip club or on the golf course. That doesn't sound like depression . . . that sounds like retirement. I'm surprised he hasn't moved to Boca Raton yet.

[Pacific Coast News]