Kelly Clarkson Lost 37 Pounds on This Diet — But it's Controversial

Kelly Clarkson recently shared that she's lost 37 pounds naturally and without exercise thanks to The Plant Paradox, a book by cardiac surgeon Steven R. Gundry that she claims has helped her stabilize a thyroid issue.

“I literally read this book, and I did it for this autoimmune 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," she told Extra. "It’s basically about how we cook our food, non-GMO, no pesticides, eating really organic." 

A source told People that Kelly adopted this diet as a permanent change for an overall health boost and not strictly to lose weight, but registered dietician Marisa More told the publication that she takes issue with the diet's focus on eliminating foods high in a protein called lectins, including starches, beans, grains and most fruit, calling the approach a "fad."

“Many of the claims regarding lectins and how they affect the body seem to be largely overblown without much human research to support them,” More told People. “Soaking and cooking destroys most lectins, and you can also ferment and sprout foods to help reduce lectin presence. (And I don’t know anyone that eats raw quinoa or kidney beans anyway.)” 

However, the practice of introducing more mindfulness into cooking and preparing nutritious food can kickstart a whole new body and mindset, as Kelly has discovered.

Steven R. Gundry has also published a companion cookbook with 100 recipes to inspire a change for those curious about the diet — even if skeptical nutrition professionals do consider it a "fad."

Any health-related information is not intended to be a substitute for professional medical advice, diagnosis, or treatment. Always seek the advice of a physician or other qualified health provider for any questions you may have regarding a medical condition, or before embarking on any diet, exercise, or wellness program.