Kelly Clarkson opens up about her weight loss

Kelly Clarkson is spilling her weight loss secrets!

"I don't work out. I mean, I should, [for my] heart and stuff. I do wine instead," Clarkson quipped on Friday's Today show, where she was serving as co-host with Hoda Kotb.

The 36-year-old singer revealed on the show that she has suffered from an auto-immune disease and a thyroid problem since 2006. Clarkson shared that after reading The Plant Paradox, which is all about "understanding food and understanding what we do to food," she lost 37 pounds.

"It worked wonderfully for me. It's, like, 37 pounds, like that's a side effect," she said. "Here's the best part, y'all. It's not even the weight. I mean, I know the industry loves the weight gone, but for me it wasn't really the weight, for me it was [that] I'm not on my medicine anymore. My blood work came back and I haven't been on my medicine since, like, February."

Now the pop star only takes medicine for her conditions when she "absolutely need[s] it." The best part? She's still eating cake and fried chicken.

"Honestly, it's the same stuff you eat, I just use different ingredients," Clarkson said. "I still have, like, cake. Like, literally, I still have everything the same as I did, even, like, fried chicken, but I use, like, casoid flour, tapioca, or almond flour. And I use, like, non-hormone chicken."

Though it's worked well for her, the mom of two did share one major problem with her new diet.

"Honestly, I'm going to be real with you. It's really expensive to do. I wish the government would really back humanity on this because it's really, really hard to find [ingredients]," she said. "I was poor growing up, there's no way my family could have afforded this. It helps out so much with health. Like I said, my auto-immune disease is, like, gone. And I'm, like, 37 pounds lighter!"

Last month, Clarkson joked during a press conference that she "literally hired Harry Potter" to help with her slim down.

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Kelly Clarkson out and about
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Kelly Clarkson out and about
BEVERLY HILLS, CA - APRIL 27: Kelly Clarkson attends Taste for a Cure at Regent Beverly Wilshire Hotel on April 27, 2018 in Beverly Hills, California. (Photo by Timothy Norris/Getty Images)
BEVERLY HILLS, CA - APRIL 27: Kelly Clarkson attends UCLA Jonsson Cancer Center Foundation Hosts 23rd Annual 'Taste for a Cure' Event Honoring President of Alternative and Reality Group for NBC Entertainment, Paul Telegdy at Regent Beverly Wilshire Hotel on April 27, 2018 in Beverly Hills, California. (Photo by John Sciulli/Getty Images for UCLA Jonsson Cancer Center Foundation)
UNIVERSAL CITY, CA - APRIL 23: Kelly Clarkson attends NBC's 'The Voice' Season 14 taping on April 23, 2018 in Universal City, California. (Photo by Tara Ziemba/Getty Images for NBC)
THE VOICE -- 'Live Playoffs' Episode 1414B -- Pictured: Kelly Clarkson -- (Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)
LAS VEGAS, NV - APRIL 15: Kelly Clarkson performs onstage during the 53rd Academy of Country Music Awards at MGM Grand Garden Arena on April 15, 2018 in Las Vegas, Nevada. (Photo by Jason Merritt/ACMA2018/Getty Images for ACM)
LATE NIGHT WITH SETH MEYERS -- Episode 651 -- Pictured: Singer Kelly Clarkson during an interview on February 27, 2018 -- (Photo by: Lloyd Bishop/NBC/NBCU Photo Bank via Getty Images)
TODAY -- Pictured: Kelly Clarkson on Monday, Feb. 26, 2018 -- (Photo by: Nathan Congleton/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - FEBRUARY 26: Kelly Clarkson visits 'The Tonight Show Starring Jimmy Fallon' at Rockefeller Center on February 26, 2018 in New York City. (Photo by Jamie McCarthy/Getty Images for NBC)
THE VOICE -- 'Knockout Rounds' -- Pictured: Kelly Clarkson -- (Photo by: Trae Patton/NBC/NBCU Photo Bank via Getty Images)
NEW YORK, NY - JANUARY 28: Kelly Clarkson arrives at the 60th Annual GRAMMY Awards at Madison Square Garden on January 28, 2018 in New York City. (Photo by Steve Granitz/WireImage)
NEW YORK, NY - JANUARY 28: Brandon Blackstock (L) and recording artist Kelly Clarkson attend the 60th Annual GRAMMY Awards at Madison Square Garden on January 28, 2018 in New York City. (Photo by Jamie McCarthy/Getty Images)
NEW YORK, NY - JANUARY 25: Kelly Clarkson attends the Warner Music Group Pre-Grammy Party in association with V Magazine on January 25, 2018 in New York City. (Photo by Dimitrios Kambouris/Getty Images )
THE VOICE -- 'Battle Rounds' -- Pictured: Kelly Clarkson -- (Photo by: Trae Patton/NBC)
BEVERLY HILLS, CA - JANUARY 07: Singer Kelly Clarkson attends the 75th Annual Golden Globe Awards at The Beverly Hilton Hotel on January 7, 2018 in Beverly Hills, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
LOS ANGELES, CA - DECEMBER 31: Kelly Clarkson performs onstage during Dick Clark's New Year's Rockin' Eve with Ryan Seacrest 2018 on December 31, 2017 in Los Angeles, California. (Photo by Frederick M. Brown/Getty Images for dcp)
TORONTO, ON - DECEMBER 09: Vocalist Kelly Clarkson attends the 2017 iHeartRadio Canada Jingle Ball at the Air Canada Centre on December 9, 2017 in Toronto, Canada. (Photo by GP Images/Getty Images)
BOSTON, MA - DECEMBER 10: Kelly Clarkson attends the KISS 108's Jingle Ball 2017 presented by Capital One at TD Garden on December 10, 2017 in Boston, Massachusetts. (Photo by Natasha Moustache/WireImage)
HOLLYWOOD, CA - NOVEMBER 30: Singer Kelly Clarkson arrives at the Billboard Women In Music 2017 at The Ray Dolby Ballroom at Hollywood & Highland Center on November 30, 2017 in Hollywood, California. (Photo by Axelle/Bauer-Griffin/FilmMagic)
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