JJ Watt On 9,000-Calorie High-Fat Low-Carb Diet: Compare To LeBron James' Paleo & Michael Phelps' Diets [Photos]

Joanne Eglash

JJ Watt is on a 9,000-calorie diet that's putting him up there with Michael Phelps in terms of sports stars and their food. JJ shifted to his high-calorie diet after trainer Brad Arnett expressed concern that something was missing in Watt's workouts, reported ESPN.

Watt took Brad's advice to boost his calories to 9,000, and the result is the Houston Texans defensive end's best performance in years.

"My body was grabbing for something that wasn't there," said JJ. "It was trying to fuel itself with no fuel."

The fuel needed for Watt's body is now derived of 9,000 calories worth of fat from foods such as avocado, coconut oil, bacon, and olive oil, as well as chicken breasts to fill out his Paleo-style low carb diet. He also sometimes eats sweet potatoes.

"I started crushing avocados," recalled JJ of following Arnett's calorie orders.

Watt didn't always eat 9,000 calories daily, but his lowest food intake still consisted of about 6,000 calories. JJ made up his meals with tricks such as wrapping bacon around his chicken.

For Watt to eat 9,000 calories, he would need to consume 13 avocados, 20 chicken breasts, and 50 slices of bacon.

JJ's caloric intake can be compared to Michael Phelps, who revealed that when he trained for the Olympics in Beijing, he gobbled as much as 12,000 calories daily.

But Watt finds reaching that 9,000 calorie total to be tiring.

"It's literally, if I'm not working out, I eat the whole time I'm not working out," admitted JJ. "It's exhausting. You have to force-feed. You have to force yourself to eat food."

However, Watt feels his Paleo-style low-carb diet is working, and that adding fat was a key component of his boost in energy. JJ also enjoys occasional cheat days.

"Everything in you wants to eat the stuff that tastes good," confessed Watt of following his low-carb 9,000-calorie diet. "And trust me, I love good food just as much as anybody."

But JJ isn't alone in sacrificing his favorite foods in order to improve his workouts. As the Inquisitr reported, Phil Mickelson and LeBron James both credited Paleo-style low-carb diets for their own sports success.

Phil's trainer, Sean Cochran, revealed that Mickelson's Paleo diet emphasizes protein, vegetables, fruits, and nuts. He avoids dairy, starchy carbohydrates such as grains and any type of processed food products. That means breakfast can include eggs and mushrooms, but toast is off the table.

As for LeBron, James was open about his low-carb Paleo diet, reported Sports Illustrated.

"I had no sugars, no dairy, I had no carbs," said LeBron. "All I ate was meat, fish, veggies and fruit. That's it."

And even Michael Phelps has become stricter with the quality of his diet since his famous high-calorie days, reported Men's Health.

While Phelps used to chow down on a breakfast of three fried-egg sandwiches with cheese, lettuce, tomatoes, fried onions, and mayonnaise; two cups of coffee; one five-egg omelet; one bowl of grits; three slices of French toast topped with powdered sugar; and three chocolate-chip pancakes, Michael now eats oatmeal, fresh fruit, and an omelet for breakfast.

"I used to think that 'healthy' meant that it wouldn't taste good," admitted Phelps prior to shifting to cleaner eating.

[Photo by Brian Bahr/Getty Images; Photo by Bob Levey/Getty Images; Photo by Scott Halleran/Getty Images; Photo by Ethan Miller/Getty Images]