Comedian Jim Carrey followed a super-strict diet and workout program to play a street magician in the upcoming film, "The Incredible Burt Wonderstone," and says the intense regimen was extremely difficult to sustain.
"It's not a natural place to live in that kind of shape," Carrey, 51, told People. "It looks great. It's fantastic and gets a lot of attention, but you have to eat, like, antimatter to stay in that kind of shape."
In the film, Jim showcases his washboard abs and super-lean physique in a shirtless scene, but says he's back to his normal self after months of deprivation.
"It's not a happy place to be," Carrey recalls. "I'm back now. I've got Mr. Cuddly back and we're happy," he said while rubbing his stomach.
Ironically, Jim revealed on Twitter that he recently gave up alcohol and cigarettes and started a strict new diet as part of a lifestyle makeover. “Tomorrow, day 14, no wheat, dairy, sugar, coffee, soda, drugs, alcohol or tobac," he tweeted. "A few more days till that sweet feeling but right now ain’t bad!"
He added: “Clarity! Contentment! Youthfulness! Longevity! This diet, though tough at first, gives me that! Can u handle it? Just 3 weeks and you’ll see! I eat eggs, meat, fish (and) veggies cooked in olive oil, fruits, nuts, water, tea with honey or Stevia, gluten-free crackers and almond butter 4 snack.”
The lanky 6-foot-2 Jim has always been in good shape and is more cautious about taking roles that require him to gain excess weight as he gets older. In 2010, Carrey dropped out of the film "The Three Stooges" after having trouble gaining the 70-80 pounds required to play Curly.
"There wasn't any creative difficulties that led to this exit, but rather the weight gain for the role," Jim told MTV. For me, I don't really want to do anything halfway, and I don't feel like a fat suit does it. I started experimenting with it a little bit, and I gained 35, 40 pounds. I wanted to gain another 30, 40.
"When you're [Robert] De Niro in your twenties or early thirties, you can kind of come back from that [massive weight gain]. It's a tough thing to come back from when you're upwards of 30. Your body can't carry it or you can have a cardiac arrest."