JONAH Hill has slimmed down to his lowest ever weight after losing the three stone he put on for his role in War Dogs.

The Superbad actor has been known for his fluctuating weight after piling on the pounds for roles in 21 and 22 Jump Street as well as The Wolf Of Wall Street.

6 Jonah Hill has transformed his look after dropping three stone Credit: MEGA

6 The 33-year-old was seen leaving the gym in LA Credit: MEGA

6 Jonah said he got a trainer and changed his diet to lose weight Credit: MEGA

But now the Hollywood star has stepped out looking better than ever as he left the gym in LA.

The 33-year-old starred in War Dogs opposite Miles Teller last year and revealed he had to put on nearly three stone for the role as an arms dealer.

At his heaviest, Jonah weighed almost 18 stone and has since lost over 3 stone.

6 He piled on the pounds for his role in War Dogs Credit: Sportsphoto Ltd./Allstar

However, after filming wrapped on the flick, Jonah was determined to get trim again and turned to his Jump Street co-star Channing Tatum for help.

Speaking on The Tonight Show with Jimmy Fallon, he revealed the hilarious advice the Magic Mike star gave him.

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He said: “I gained weight for this movie War Dogs, and then I wanted to get in better shape, so I called Channing Tatum, and said, ‘Hey, if I ate less and go to a trainer, will I get in better shape?’

"And he said, ‘Yes, you dumb motherf**ker, of course you will, it’s the simplest thing in the entire world'."

6 Jonah said his Jump Street co-star Channing Tatum gave him some advice about how to drop the pounds Credit: Columbia Pictures

Back in 2011, Jonah famously slimmed down his 17 stone 8lb frame for his role in Moneyball opposite Brad Pitt.

Speaking about his 2 stone 8 lb weight loss, he said: “I wish there was some crazy thing that I did, like a pill or a genie or something.

"But it was, unfortunately, I went to see a nutritionist, and he told me what to eat to change my habits and stuff. I found that Japanese food was very helpful to me.”

6 Jonah says he wants to be healthy and to make his family proud Credit: Getty Images - WireImage

However, while he wants to look good, Jonah said he wants to be healthy as well as slim.

He told Vulture: "Being healthier came along with maturity and it's hard, because a lot of times people want you to be the guy you were when they met you.

"And I love doing funny movies, but I want to mature, literally, in how I treat myself. I'm not living in a frat house with a bong plastered to the table.

"But all this stuff [points to his body] is just part of maturing in body and in mind.

"I just want to be a good man and to make my family proud. And, you know, I want to live a long time."

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