New research indicates that individuals who discontinue blockbuster slimming jabs like Wegovy and Mounjaro can put back on reduced body mass far faster than those who stop conventional diet and exercise programs.
Published data in a prominent medical journal shows that while obese individuals often shed substantial amounts of their body weight while undergoing treatment, the weight returns at an average rate of 0.8 kg per month after stopping.
"Individuals purchasing such treatments should be aware of the risk of fast rebound weight gain when the medication ends," warns expert Dr. Susan Jebb.
That rate of regain suggests a return to starting weight within about a year and a half.
Comparing Approaches
The study, which examined 37 of trials involving over 9,000 of participants, compared the outcomes of GLP-1 agonists with conventional dieting.
Scientists point out that individuals who lose weight through diet and exercise typically experience a less rapid creep back—around 0.1 kg a month—post-intervention.
Understanding the Rapid Regain
Doctors suggest the mode of action of the injections explains the accelerated regain.
GLP-1 drugs copy a natural hormone called glucagon-like peptide-1, which controls hunger.
"Artificially providing the hormone levels far above than the body's typical production could lead to the body to produce less of its own natural GLP-1, and may also lessen sensitivity to its effects," noted Dr. Adam Collins, a nutrition expert.
"Withdrawal of this medication results in hunger is no longer kept in check, making excessive eating far more likely."
A Chronic Disease?
Medical guidelines advise the jabs for people with weight-linked health risks, alongside prescribed lifestyle changes.
Professionals argue that, given the high risk of relapse, the treatment is often ongoing.
This view is supported by drug manufacturers, who state that the findings "emphasize the persistent character of excess weight," comparing it to managing diseases like high blood pressure.
User Testimonies
Users who have come off the jabs explain a sudden return of cravings.
"I experienced a trigger that goes on and you become ravenous," said a patient.
The struggle is compounded if users have not developed permanent lifestyle or habit changes during treatment.
Widespread Interest
Recent estimates suggest that a significant number of adults in the UK have tried weight-loss jabs in the past year, with desire continuing to grow.
- Use is greater among females compared to males.
- The middle-aged age group shows the greatest level of interest.
- A large proportion obtain the drugs through private prescriptions rather than public health services.
Ultimately, clinicians emphasize that while the jabs are powerful agents for weight loss, they are not a permanent cure and maintained weight loss hinges on integrated behavioural support.
