Those closest to Aguilera are said to be concerned about the potential risks associated with dramatic weight fluctuations.
Christina Aguilera has neither conformed nor denied the use of drugs like Ozempic. MEGA/Instagram
Aguilera's slimmed-down figure sparked speculation she has turned to the popular weight-loss drug Ozempic , but the singer has never confirmed or denied the use of any medication.
But a music insider said the constant back and forth is unhealthy.
The source said: "Whether she's using Ozempic or not, yo-yo dieting is neither good nor sustainable for anyone."
Aguilera's weight has fluctuated throughout her career, beginning in 2002, when she gained around 15lbs during her tour.
The singer has battled her weight for years, with some of the most dramatic shifts occurring after her 2008 pregnancy with her first son, Max.
By the time Aguilera, 43, appeared as a judge on The Voice , she had reportedly lost another 35lbs.
However, the weight eventually returned, and by 2022, the singer's weight gain was once again a topic of media speculation.
Now, the dramatic weight loss has sparked renewed concern for her well-being.
Dr. Stuart Fischer, author of The Park Avenue Diet , has commented on the situation, estimating Aguilera once weighed over 140lbs but now appears to be just above 100lbs.
Along with other medical experts, he is concerned about the potential long-term effects of such drastic weight loss.
Longevity expert Dr. Gabe Mirkin also warned yo-yo dieting can have severe consequences for overall health.
He said: "Diets that cause rapid weight loss can shorten lives and increase the risk of heart attacks and premature death."
Aguilera has been engaged to Matthew Rutler for 14 years. MEGA
Mirkin also cautioned drugs like Ozempic , if used improperly, can damage vital organs, including the pancreas, gall bladder, and kidneys.
Neither doctor has treated the Genie in a Bottle singer.
In July, while introducing a partnership with Playground's Catherine Magee and Sandy Vukovic, the singer showcased her slimmer figure – and fans were left torn.
One fan commented: "How did she lose so much weight?"
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