Mac from always sunny describes his process to become fat Mac. "I was basically trying to destroy myself physically as much as I possibly could" Here's the article  "Oh, I was basically trying to destroy myself physically as much as I possibly could. I was trying to eat around 5,000 calories a day, and at first I was doing it as healthy as possible, but after like the 3,000th calorie of grilled chicken breast and rice, you realize you literally have to consume twice as much volume as opposed to just eating a cheeseburger. So after a while, I started eating a lot, a lot of doughnuts. It was really hard, man. The key to it was force-feeding myself this milkshake that I made every day that had weight gainer, chocolate milk, chocolate ice cream, and creatine, which creates bloating, and force-feeding myself two of those every day, and those were about 1,000 calories a piece, and that’s what really put it over the edge." Here is a pic from last weekend. Dude is back, solid diesel.