Fresh analysis reveals that people who discontinue popular weight-loss injections like Wegovy and Mounjaro may regain shed pounds at a significantly accelerated pace than those who halt conventional diet and exercise regimens.
Published data in a leading medical journal shows that while obese individuals frequently drop a large proportion of their body weight while on the medication, the weight comes back at an average rate of nearly a kilo each month after stopping.
"Individuals buying such medications should be cognizant of the risk of quick rebound weight gain when the medication is stopped," cautioned researcher Dr. Susan Jebb.
That rate of recovery suggests a reversion to pre-treatment weight within about one and a half years.
Comparing Therapies
The analysis, which looked at 37 of trials involving thousands of patients, contrasted the effects of these new drugs with other pills.
Researchers note that people who lose weight through lifestyle changes alone typically experience a less rapid creep back—perhaps 100 grams monthly—post-intervention.
Explaining the Quick Rebound
Doctors believe the mechanism of the injections is key to understanding the accelerated rebound.
These medications mimic a body's own chemical called GLP-1, which controls feelings of fullness.
"Artificially providing the hormone concentrations several times higher than normal may cause the body to generate a reduced amount of its own natural GLP-1, and may also diminish sensitivity to its effects," said Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this hormone supplement results in appetite is no longer kept in check, making binge eating a significant risk."
A Chronic Disease?
Health authorities recommend the injections for individuals with obesity-related health risks, accompanied by prescribed lifestyle changes.
Professionals contend that, considering the significant potential of weight regain, the therapy is often ongoing.
This perspective is supported by pharmaceutical companies, who state that the results "emphasize the long-term character of obesity," similar to managing conditions like diabetes.
Patient Testimonies
Individuals who have discontinued the jabs report a intense return of cravings.
"It was like a trigger flipping and you're instantly ravenous," recalled one woman.
The struggle is compounded if patients have not developed lasting dietary or behavioural changes during treatment.
Widespread Adoption
Survey data suggest that millions of people in the UK have tried these injections in the past year, with desire remaining high.
- Use is higher among women compared to males.
- The 40s and 50s age group shows the highest usage rates.
- Many obtain the medications through private prescriptions rather than public health services.
Finally, researchers stress that while the jabs are effective tools for weight loss, they are not a standalone solution and long-term success likely depends on ongoing behavioural changes.
