Fresh analysis suggests that people who discontinue blockbuster weight-loss injections like Mounjaro or Wegovy tend to recover lost weight far faster than those who stop conventional lifestyle plans.
Published data in a major medical journal demonstrates that while obese individuals frequently drop substantial amounts of their body weight while undergoing treatment, the mass comes back at an estimated rate of 0.8 kg per month upon discontinuation.
"Users buying such treatments must be aware of the danger of rapid rebound weight gain when the therapy concludes," cautioned researcher Dr. Susan Jebb.
That rate of regain implies a reversion to original weight in about one and a half years.
The study, which looked at dozens of trials involving thousands of participants, contrasted the results of GLP-1 agonists with older methods.
Scientists emphasize that individuals who lose weight through dieting usually experience a more gradual weight regain—around 100 grams monthly—once they finish.
Doctors propose the mechanism of the jabs is key to understanding the accelerated rebound.
GLP-1 drugs mimic a natural hormone called glucagon-like peptide-1, which moderates appetite.
"Sustained high doses of GLP-1 levels several times higher than the body's typical production could lead to the body to produce less of its own natural GLP-1, and could diminish responsiveness to its actions," noted Dr. Adam Collins, a dietetics expert.
"Discontinuation of this hormone supplement means hunger is uncontrolled, making excessive eating a significant risk."
The NHS advise the jabs for individuals with obesity-related health risks, accompanied by prescribed diet and exercise modifications.
A number of clinicians say that, due to the likelihood of weight regain, the treatment is often life-long.
This view is echoed by pharmaceutical companies, who note that the findings "underscore the persistent character of obesity," akin to managing conditions like high blood pressure.
Individuals who have discontinued the medication explain a intense resurgence of appetite.
"I experienced a switch activating and you're instantly starving," described a patient.
This difficulty is worsened if individuals have not adopted sustainable lifestyle or habit modifications during treatment.
Survey data suggest that millions of people in the UK have used weight-loss jabs in the last 12 months, with interest being substantial.
In conclusion, experts stress that while the jabs are potent tools for shedding pounds, they are not a magic cure and lasting health benefits relies on combined lifestyle support.
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