Kim Kardashian lost 16 pounds to fit into Marilyn Monroe's dress, and it's not the first time she's gone to extreme lengths for Met Gala fashion

• Kim Kardashian said she lost 16 pounds in three weeks to fit into her 2022 Met Gala dress.

• It's not the first time she's taken extreme measures for her Met Gala fashion.

• She took corset breathing lessons and said she would urinate on herself to wear her 2019 dress.

Kim Kardashian made waves on the Met Gala red carpet on Monday, arriving in the dress Marilyn Monroe wore to sing "Happy Birthday" to President John F. Kennedy in 1962.

The iconic gown could not be altered, and Kardashian told Vogue she did not initially fit into the dress when it was brought to her house.

Instead of cutting her losses and wearing something else, Kardashian said she lost 16 pounds in just three weeks to fit into the vintage dress for the event.

"I would wear a sauna suit twice a day, run on the treadmill, completely cut out all sugar and all carbs, and just eat the cleanest veggies and protein," Kardashian said to Vogue. "I didn't starve myself, but I was so strict."

An expert told Insider's Rachel Hosie that kind of weight loss would require extreme and dangerous dieting.

Kardashian also dyed her hair bleach-blonde to complete her transformation into Monroe.

The SKIMS founder only wore the dress on the red carpet, as it's extremely fragile. She changed into a replica after arriving at the Met Gala.

It might seem outlandish that Kardashian put her health at risk for a dress she only wore for a few minutes, but it's not the first time Kardashian has resorted to extreme measures for a Met Gala look.

In 2019, for the "Camp: Notes on Fashion" Met Gala, Kardashian wore a custom Thierry Mugler dress that had an intense waist-cinching corset.

The dress was so tight that Mugler gave Kardashian "corset breathing lessons" so she could breathe while wearing the look, as she shared in an Instagram post.

"Corset breathing lessons from none other than Mr. Pearl," she wrote. "It was worth it all!"

She also said during a fitting filmed for "Keeping Up With the Kardashians" that the dress was so tight that she couldn't go to the bathroom.

Rather than have the dress loosened, Kardashian said she was willing to urinate on herself so she could wear the dress.

"I think if it's an emergency, I would pee my pants and then have my sister wipe my leg up," she said in a clip from the series. "I'm not even joking. She can wipe my leg up."

And at the 2021 Met Gala, Kardashian wore a custom Balenciaga outfit complete with a head covering that hindered her sight.

She couldn't even see her sister Kendall Jenner on the Met Gala red carpet, which led to memes of the two interacting.

Representatives for Kardashian did not immediately respond to Insider's request for comment.

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