I'm friends with and have been trained by one of the dudes who started the website. He's an absolute freak show when it comes to natural strength.
All he does is eat, drink milk, and squat/press/deadlift/bench. No supplements. Here's a pic from his powerlifting meet this past weekend.
He's the type of guy supplement companies don't want you to know about. Everything he accomplishes is from food and training and that's it.