Jonah Hill Trims Down, Shows Off Slimmer Physique with Girlfriend in Los Angeles

Jonah Hill dramatically slims down.

Jonah Hill is looking like a much slimmer man these days.

The 32-year-old actor was snapped out and about in Los Angeles on Monday with his girlfriend, Camille, looking noticeably trimmer than he has in recent photos.

Hill, who was all smiles, donned a New York Yankees baseball cap, a polo shirt and black jeans.

GAMR/Ryan Fu/FAMEFLYNET

WATCH: Jonah Hill Displays Shocking Weight Gain on the Set of 'War Dogs'

Getty Images

The transformation is shocking when you compare how the This Is the End actor looked almost a year ago on the set of his comedy War Dogs, formerly titled Arms and the Dudes. Though of course, this isn't the only time Jonah's weight has fluctuated. He dramatically slimmed down for 2011's Moneyball, but appeared to gain it back in 2014.

Last May, ET caught up with nutritionist to the stars, Dr. Philip Goglia, who talked about his positive experience working with Jonah.

"Jonah Hill would send me pictures of his food saying, 'Here are my pictures! I'm on it! Eating! Is it OK if I text you pictures of the food?' So he'd have all his eggs lined up and his salmon, and it was hysterical," Goglia recalled.

WATCH: How Nutritionist to the Stars Dr. Goglia Whips Kim Kardashian & Chris Pratt Into Shape

Well, whatever he's doing now, it’s clearly working. Keep up the good work Jonah!

Watch the video below to see the Oscar-nominated actor last year on the set of War Dogs, co-starring Miles Teller. The comedy hits theaters on August 19.