Rob McElhenney From ‘It’s Always Sunny’ Tells How He Went From ‘Fat Mac’ To Shredded

If you want workout tips for how Mac from "It's Always Sunny" transformed his body from "Fat Mac" to his shredded physique for the newest season of the show, he gives you just what you want.

In true McElhenney/Mac fashion, he pulls out all the stops for this joke. While I'm sure this is actually what he did, he says, "I don’t know why everyone’s not doing this."

Once you read how he did it, it will all make sense.