A recent study suggests that patients who come off new GLP-1 drugs like Wegovy and Mounjaro tend to recover shed pounds far faster than those who halt conventional lifestyle regimens.
Published data in a leading medical journal demonstrates that while overweight individuals often shed about a fifth of their body weight while on the medication, the weight is regained at an average rate of nearly a kilo each month once they quit.
"Individuals buying such treatments must be cognizant of the danger of rapid rebound weight gain when the therapy ends," stated lead investigator Dr. Susan Jebb.
That rate of regain implies a return to starting weight in about 18 months.
Comparing Therapies
The study, which looked at dozens of trials involving over 9,000 of patients, compared the results of the injectable medications with conventional dieting.
Scientists emphasize that individuals who lose weight through dieting usually see a more gradual weight regain—approximately 100 grams monthly—post-intervention.
The Reason for the Quick Rebound
Experts believe the mode of action of the injections is key to understanding the amplified regain.
GLP-1 drugs copy a natural hormone called GLP-1, which moderates feelings of fullness.
"Sustained high doses of GLP-1 levels far above than the body's typical production might result in the system to produce less of its own natural GLP-1, and could diminish responsiveness to its effects," explained Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this GLP-1 'fix' results in appetite is unsuppressed, making excessive eating a significant risk."
An Ongoing Disease?
Health authorities recommend the injections for individuals with weight-linked health risks, alongside recommended lifestyle changes.
A number of clinicians say that, due to the high risk of relapse, the treatment should be considered long-term.
This perspective is supported by drug manufacturers, who note that the results "emphasize the chronic nature of excess weight," similar to managing conditions like diabetes.
Patient Experiences
Users who have come off the medication explain a sudden resurgence of cravings.
"I experienced something activating and you become starving," recalled a patient.
This challenge is compounded if individuals have not adopted lasting dietary or behavioural changes during treatment.
Significant Interest
Figures indicate that millions of adults in the UK have used these injections in the last 12 months, with desire remaining high.
- Adoption is more common among women than males.
- The middle-aged age group shows the highest usage rates.
- Many obtain the drugs through private prescriptions rather than public health services.
Finally, experts stress that while the jabs are powerful tools for shedding pounds, they are not a magic fix and long-term success likely depends on ongoing lifestyle changes.
