Kelly Clarkson, celebrated for her significant weight loss and renewed figure, is reportedly facing unexpected challenges due to her dietary choices. According to sources, the acclaimed singer and talk show host has embarked on a strict regimen that, while effective for weight management, has led to some less desirable consequences, including bad breath.

The 41-year-old Emmy Award-winning artist, known for her dynamic voice and vibrant personality, has recently undergone a noticeable transformation, shedding 40 pounds over several months. Clarkson attributes her weight loss success to a low-carbohydrate diet and increased physical activity, particularly walking, after receiving a prediabetes diagnosis. "A protein diet is good for me anyway," Clarkson remarked, acknowledging her preference for meat as a nod to her Texas roots, despite the dietary restrictions this entails.

However, nutrition experts caution that high-protein diets can increase ammonia production during digestion, potentially resulting in breath that has an unpleasant odor, likened by some to that of cat urine. Additionally, a reduction in overall food intake can lead to decreased saliva production, further exacerbating issues related to oral hygiene.

A source close to Clarkson told The National Enquirer, "Clearly, Kelly's not doing enough for her oral hygiene to combat the effects of her diet." This has become particularly noticeable given Clarkson's role as a talk show host, where her interaction with guests and audiences is up close and personal.

The situation is also purportedly affecting Clarkson's personal life, particularly as she navigates the dating scene following her divorce from Brandon Blackstock in 2020. "Kelly looks great and has so much going for her, but this whole issue with her breath is holding her back," the insider shared, suggesting that someone close to the star needs to address the matter candidly with her.

The "American Idol" alum was reached for comments over this matter.

Meanwhile, Kelly has expressed contentment and resilience following her decision to end her marriage to Brandon Blackstock, according to an exclusive source close to the artist.

"She is doing really well," the insider revealed, shedding light on Clarkson's current state. "She is happy that she left L.A. for N.Y. She has primary custody of the kids and is a great mom."

Despite her commitment to her career, the source emphasized that Clarkson's children remain her top priority. "Although she loves working, the kids are her world," they affirmed, highlighting Clarkson's hands-on and fun-loving approach to parenting.

Reflecting on the challenging period surrounding her divorce, the source disclosed, "The divorce was difficult, but she recovered quickly and has no regrets." This sentiment underscores Clarkson's resilience and her ability to navigate personal hardships with grace and determination.

Clarkson and Blackstock's relationship had its origins in their engagement in December 2012, followed by their marriage in October of the subsequent year. Together, they welcomed two children: daughter River Rose, aged 9, and son Remington Alexander, aged 7. Additionally, Blackstock has two children, son Seth and daughter Savannah, from his prior marriage to Melissa Ashworth.

In 2020, Clarkson initiated divorce proceedings against Blackstock, with the legal process culminating in its finalization two years later.

In an exclusive interview with PEOPLE in January 2024, Clarkson opened up about the emotional toll of her divorce, describing it as "extraordinarily hard." She spoke candidly about the feelings of isolation and the significance of having an outlet for her emotions, expressing gratitude for the therapeutic role of her music, as evidenced by her latest album, "Chemistry."