New research indicates that people who discontinue new slimming jabs like Wegovy and Mounjaro may regain shed pounds at a significantly accelerated pace than those who stop traditional lifestyle plans.
Published data in a major health publication demonstrates that while obese individuals frequently drop substantial amounts of their body weight while undergoing treatment, the mass returns at an average rate of nearly a kilo each month after stopping.
"People purchasing such medications should be cognizant of the potential of rapid rebound weight gain when the therapy ends," warns lead investigator Dr. Susan Jebb.
Such speed of regain implies a return to starting mass in about one and a half years.
Weighing Treatments
The analysis, which examined dozens of studies involving thousands of patients, contrasted the results of GLP-1 agonists with conventional dieting.
Scientists emphasize that individuals who shed pounds through lifestyle changes alone generally experience a less rapid creep back—perhaps 0.1 kg a month—after stopping.
The Reason for the Rapid Rebound
Nutrition scientists suggest the mechanism of the injections accounts for the accelerated regain.
GLP-1 drugs copy a natural hormone called glucagon-like peptide-1, which controls appetite.
"Artificially providing the hormone concentrations several times higher than normal may cause the body to produce less of its own natural hormone, and may also diminish responsiveness to its actions," said Dr. Adam Collins, a dietetics researcher.
"Stopping of this GLP-1 'fix' means appetite is unsuppressed, making overeating a significant risk."
An Ongoing Condition?
The NHS recommend the jabs for people with weight-linked health risks, alongside recommended lifestyle changes.
Professionals argue that, due to the likelihood of relapse, the therapy is often life-long.
This view is supported by drug manufacturers, who say that the results "emphasize the long-term character of excess weight," akin to managing diseases like hypertension.
Patient Testimonies
Users who have discontinued the jabs describe a powerful return of appetite.
"It was like a switch flipping and I was suddenly extremely hungry," described an individual.
The struggle is compounded if patients have not adopted sustainable lifestyle or habit changes during treatment.
Growing Use
Recent estimates indicate that millions of people in the UK have used these injections in the past year, with demand remaining high.
- Use is greater among women compared to males.
- The 40s and 50s demographic shows the greatest usage rates.
- Many obtain the medications through private healthcare rather than public health services.
Ultimately, experts stress that while GLP-1 drugs are powerful tools for weight loss, they are not a standalone cure and maintained weight loss likely depends on ongoing lifestyle support.
