Melissa McCarthy shares weight loss secrets.

Melissa McCarthy: Weight Loss Secret Finally Revealed After 50-Pound Low-Carb Diet Success [Video]

Melissa McCarthy finally is sharing her weight loss secret. Although the comedian’s slim-down success was obvious on the red carpet premieres for her new movie Spy, with sources saying that she had lost 45 to 50 pounds, Melissa herself hasn’t shared her weight loss secrets, reported E! News.

But now, as McCarthy preps to unveil her clothing line that she created specifically to provide plus-size women with more appealing options, she’s ready to discuss how she reshaped her figure. And Melissa got candid on CBS This Morning.

“Melissa, can I say you look great? I saw you on the red carpet with one of your designs and… I was saying, ‘Listen, I’m about to sign up for Weight Watchers for the third time, because I do know it works, and you’re doing something that’s working for you,” said interviewer Gayle King.

Initially, McCarthy joked about her weight loss.

“Just crying a lot,” she grinned when she began her weight loss monologue. “I’m crying off the pounds.”

But when she got serious, Melissa admitted that she had been stressing about it. And the secret, she claimed, is to let go of that stress if you want to let go of the weight.

“I feel amazing [after the weight loss] and I finally said, ‘Oh, for God sakes, stop worrying about it’ and it may be the best thing I’ve ever done,” McCarthy confessed.

“I truly stopped worrying about it. I stopped over-analyzing, over-thinking, over-doing anything. I kinda went back to when I was pregnant and I just stopped constantly being worried about it and I think there’s something to kinda loosening up and not being so nervous and rigid about it that, bizarrely, has worked. I could’ve figured that out before 44, but whatever.”

However, when it comes to her specific diet secrets, McCarthy used a high protein, low carb diet, according to the Daily Mail.

The diet helped her lose 50 pounds and improve her health, and Melissa happily flaunted the results by wearing a dress from her new clothing line at the latest Spy movie premiere.

As the Inquisitr reported, Melissa’s weight loss secrets also helped her to do her own stunts for the film.

“I threw my back out a couple of times, but after all that, it was weirdly fun … It’s challenging. It’s like a big run or something when you don’t think you can get through it and then you do and you’re kind of like, ‘Oh my God.’ You kind of feel proud of yourself for getting through it.”

As for McCarthy’s comment that letting go of stress is her key weight loss secret, researchers have found that stress actually does contribute to weight gain, reported WebMD.

“For some people, chronic stress can be tied to an increase in appetite — and stress-induced weight gain,” explained Elissa Epel, PhD, who specializes in psychiatry at the University of California at San Francisco.

Epel revealed that cortisol is one of the main problems with feeling stressed, and the hormone tends to stay high, causing long-term weight gain.

“It can remain elevated, increasing your appetite and ultimately driving you to eat more,” added the weight loss specialist.

[Photo by Neilson Barnard / Getty Images]