Fresh analysis suggests that individuals who come off blockbuster GLP-1 drugs like Wegovy and Mounjaro can put back on shed pounds much more quickly than those who end traditional lifestyle regimens.
Findings released in a major health publication demonstrates that while overweight people frequently drop a large proportion of their total mass while on the medication, the mass comes back at an estimated rate of 0.8 kg per month after stopping.
"Users purchasing these medications should be informed of the risk of quick rebound weight gain when the therapy concludes," warns researcher Dr. Susan Jebb.
That rate of recovery means a reversion to original mass within about a year and a half.
Comparing Treatments
The study, which examined dozens of trials involving thousands of participants, contrasted the outcomes of GLP-1 agonists with conventional dieting.
Scientists point out that people who lose weight through diet and exercise generally have a less rapid creep back—approximately 100 grams monthly—post-intervention.
The Reason for the Fast Regain
Experts believe the mechanism of the jabs accounts for the heightened weight return.
These medications mimic a natural hormone called GLP-1, which helps regulate hunger.
"Sustained high doses of GLP-1 concentrations far above than normal could lead to the body to generate a reduced amount of its own natural hormone, and could lessen responsiveness to its actions," noted Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this medication results in appetite is no longer kept in check, making excessive eating a significant risk."
A Chronic Issue?
Medical guidelines advise the injections for people with weight-linked medical conditions, alongside recommended diet and exercise modifications.
Professionals say that, given the likelihood of relapse, the therapy should be considered long-term.
This opinion is reinforced by drug manufacturers, who say that the findings "highlight the chronic nature of excess weight," comparing it to managing diseases like high blood pressure.
User Experiences
People who have discontinued the jabs describe a sudden resurgence of appetite.
"I experienced a switch that goes on and you're instantly starving," described a patient.
This challenge is compounded if users have not developed sustainable lifestyle or habit changes during therapy.
Significant Adoption
Recent estimates indicate that millions of people in the UK have tried weight-loss jabs in the past year, with interest continuing to grow.
- Use is greater among women compared to males.
- The middle-aged age group shows the highest usage rates.
- A large proportion access the drugs through private healthcare rather than the NHS.
Finally, experts emphasize that while these medications are effective tools for shedding pounds, they are not a permanent fix and maintained weight loss relies on combined lifestyle changes.
