Who said "Take care of your body, it's the only one you get"?

This quote is attributed to Kenny McCormick.

Take care of your body, it's the only one you get - Kenny McCormick

"Take care of your body, it's the only one you get"

Kenny McCormick Health

"Mmph mmph mrmph!"

"I'm not fat, I'm just big boned"

"Dude, we're in third grade"

"This is so cool"

"You can't expect to be happy if you're surrounded by mess."

"Health and happiness - these are true wealth"

"How can you live like this? It's like a pigsty!"

"You're going to get sick living like this."