A recent study suggests that individuals who stop using blockbuster weight-loss injections like Mounjaro or Wegovy may regain shed pounds at a significantly accelerated pace than those who end traditional diet and exercise regimens.
Published data in a major health publication shows that while obese people can lose a large proportion of their total mass while using the jabs, the mass comes back at an estimated rate of 0.8 kg per month once they quit.
"Users using such drugs must be informed of the danger of quick weight regain when the medication ends," warns lead investigator Dr. Susan Jebb.
Such speed of recovery implies a return to original mass within about one and a half years.
Weighing Therapies
The research, which looked at dozens of trials involving thousands of participants, contrasted the outcomes of the injectable medications with conventional dieting.
The team note that individuals who lose weight through lifestyle changes alone generally experience a more gradual creep back—around 100 grams monthly—after stopping.
The Reason for the Rapid Regain
Experts believe the mechanism of the jabs accounts for the heightened regain.
The injections copy a body's own chemical called glucagon-like peptide-1, which moderates hunger.
"Artificially providing GLP-1 levels far above than normal could lead to the body to produce less of its own natural hormone, and could lessen responsiveness to its effects," noted Dr. Adam Collins, a dietetics specialist.
"Stopping of this GLP-1 'fix' results in hunger is no longer kept in check, making excessive eating far more likely."
An Ongoing Issue?
Medical guidelines suggest the jabs for individuals with weight-linked medical conditions, accompanied by recommended lifestyle changes.
A number of clinicians say that, considering the significant potential of relapse, the treatment is often life-long.
This view is echoed by drug manufacturers, who note that the findings "underscore the persistent nature of obesity," comparing it to managing diseases like diabetes.
User Experiences
People who have stopped the medication describe a sudden resurgence of cravings.
"It felt as if something that goes on and you become extremely hungry," recalled an individual.
This challenge is exacerbated if patients have not adopted permanent lifestyle or habit changes during therapy.
Growing Adoption
Survey data indicate that a significant number of adults in the UK have tried these injections in the last 12 months, with demand continuing to grow.
- Adoption is higher among women compared to males.
- The 40s and 50s age group shows the highest usage rates.
- Many obtain the drugs through private prescriptions rather than the NHS.
Finally, experts caution that while these medications are potent agents for shedding pounds, they are not a permanent fix and lasting health benefits likely depends on combined lifestyle support.
