It comes as no surprise that someone as active and athletic as Mat Fraser needs to eat a ton of calories. However, you would not believe the secrets to his diet, which consists of over 9,000 calories a day.

Fraser is the four time winner of the CrossFit Games, and as such is one of the best athletes on Earth. He holds some serious accomplishment in the sport, and is a massive inspiration to those who aspire to be like him. But as anyone who has tried to achieve fitness goals will tell you, there is more to it than just hitting the gym. You also have to follow a specific diet for your own personal needs.

So what is the secret to the diet of Mat Fraser? Well turns out, it’s actually his fiancee Sammy Moniz. Mat and Sammy joined comedian James Davis on an episode of Nike’s Athlete’s Cookbook, where they discussed the diet of this CrossFit star.