The 34-year-old star, who is married to his 'Step Up' co-star Jenna Dewan-Tatum, said he does not try hard to keep in shape when he is not doing films, reported Contactmusic.
"When I'm not working, I tend to get a little what my wife and I call 'fappy', meaning 'fat and happy'. I always keep fit because I like working out and I enjoy the competitiveness of training with buddies, but I loathe dieting. Loathe it.
"When I'm dieting I eat the same stuff every day. It's madness and monotony and it sucks the colour right out of the world until I feel like I'm living in that movie 'Pleasantville', all in black and white, It's awful," he said.