Kelly Clarkson reveals simple secret behind 18kg weight loss

KELLY Clarkson has shed 18kgs of weight she gained due to an auto-immune disease — and she credits one book with changing her life.

KELLY Clarkson showed off her newly slim figure during a ceremony Wednesday honouring her friend and former American Idol judge Simon Cowell on the Hollywood Walk of Fame.

The 36-year-old American Idol winner stunned in a belted black and yellow floral dress, posing for pictures with the America’s Got Talent judge. She also stepped up to a podium to thank the 58-year-old for his continued support through the years.

Kelly Clarkson hits the Hollywood Walk of Fame. Picture: MEGA

“He’s the best friend you can ever have … He’s honest and supportive,” she reportedly commented, as Cowell was awarded with a star on the famous Hollywood boulevard. “[Simon] appreciates authenticity even if it’s not something he’s into. He appreciates you being yourself. That’s very rare in this industry.”

In June, Clarkson admitted she had been struggling with an auto-immune disease and thyroid issue, which made it difficult for her to lose weight. But eventually, she said, she found a way to get leaner — and it wasn’t thanks to exercise.

With friend Simon Cowell. Picture: Getty

On stage in 2015. Picture: Getty

Instead, Clarkson credited a book with changing her life.

“I literally read this book, and I did it for this auto-immune disease that I had and I had a thyroid issue, and now all my levels are back up. I’m not on medicine anymore because of this book,” Clarkson told Extra, referring to The Plant Paradox by Steven R. Gundry.

By following methods outlined in the book, Clarkson said she has dropped nearly 18kgs.

Clarkson explained the book focuses on how food can be cooked with “non-GMO, no pesticides,” focusing on an organic diet.

At the Billboard Music Awards in May. Picture: Getty Images/AFP

Circa 2015. Picture: Getty

“I’m not working out! I think people think I’m working out and I’m like, ‘Don’t think I’m going to come play some sport!’” she told Extra in June, adding that her exercise routine hasn’t changed one bit.

This story originally appeared on Fox News and is republished here with permission.