Photo: Matt Sayles/ABC

Jimmy Kimmel

WhenJimmy Kimmeltakes the stage March 12 to host theOscarsfor a third time, his months of prep work will surely pay off.

There’ll be a honed monologue, a fun game plan for the show and, thanks to some extra effort and, yes, personal sacrifice, a fit and trimmed-down star for Hollywood’s biggest night.

“I did have a very unfortunate moment where I tried to fit into the tuxedo I wore in 2018 and I didn’t quite make it,” Kimmel, 55, tells PEOPLE in this week’s issue. “I looked a little bit like a homemade sausage, so I have been trying to lose some weight beforethe Oscars.”

In addition to exercise, the veteran host has changed up his diet a bit. “I’ve been getting these little meals in little Tupperware containers delivered to my house every morning,” he says. “And I have to say, I never feel more sorry for myself than when everyone else is eating spaghetti and I’m eating some little tacos with no tortillas.”

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Still, Kimmel, who will wear a new custom Tom Ford tux for the big night, is maintaining fairly realistic physique end-goals. He says, “I don’t want to show up onstagelooking like Cocaine Bear, you know what I’m saying?”

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“I like to go in 75 percent prepared and leave some room for improvisation and reacting to the show as it’s happening,” he says, adding, “I’m going to give it 110 percent.”

The Oscarsair live on ABC Sunday, March 12, at 8 p.m. ET.

For more from Jimmy Kimmel, pick up this week’s issue ofPEOPLE, on newsstands Friday.

source: people.com