Earlier this week, wrestler/actor Dwayne "The Rock" Johnson tweeted out his "cheat meals," which consisted of 12 pancakes, four "double dough" pizzas, and 21 brownies -- all in one day.

This might seem like an insane amount of food for one man to eat, but considering The Rock presumably works out all the time, one day of extremely unhealthy eating shouldn't destroy his body.

In the entire history of sports, though, there have been professional athletes who have won championships and titles while living off of a diet consisting mostly of "cheat meals."

From an Olympic gold medalist eating McDonald's for breakfast, lunch, and dinner to a UFC champion drinking his own urine like its coffee, we present to you the strangest eating habits of professional athletes.