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Marissa Jaret Winokur

Byron Purvis/AdMedia/Sipa USA

Marissa Jaret Winokur is one hot mama!

The Hairspray star showed off her slimmed-down physique at Monday night's Hollywood premiere of Planes, which opens in theaters on Aug. 9.

"I work out every day and I eat 1,200 calories," she said, adding, "Here's the truth—like I've said to everybody, every diet works if you follow the diet."

In December, Winokur revealed that she had lost 60 pounds over a seven-month period.

Marissa Jaret Winokur, Judah Miller

Mark Davis/AP

She now makes daily trips to the gym. "An hour and a half every day," Winokur said. "I used to do twice a day! Now I'm at the maintaining [stage]."

That doesn't mean it's always easy staying on track.

"It's hard," Winokur said. "It's really, really hard. But I've decided that I can't go back because I will go back immediately. I said to my trainer the other day, 'I ate a French fry.' I felt like it was a gateway food, and he's like, 'No, French fries are past the gateway. That's not a gateway food. You're already in it."

"Gateway," she continued, "would be like a chocolate-covered espresso bean. French fries, you've gone over."

And then there's Winokur's boobage.

"I'm wearing a padded bra because I've lost my boobs completely," she said. "I went from a 38DD to a 34C!"

Winokur's hubby, Judah Miller, hasn't noticed. "He doesn't care. It's like, 'Whatever, I'm working,'" she said with a laugh. "I wear padding. It all looks the same."