New research reveals that people who discontinue new slimming jabs like Wegovy and Mounjaro may regain reduced body mass at a significantly accelerated pace than those who end conventional diet and exercise programs.
Published data in a leading medical journal demonstrates that while overweight individuals often shed substantial amounts of their body weight while on the medication, the mass comes back at an average rate of nearly a kilo each month upon discontinuation.
"Users buying such treatments should be cognizant of the potential of rapid rebound weight gain when the treatment concludes," warns expert Dr. Susan Jebb.
That rate of regain suggests a reversion to starting weight within about a year and a half.
Analyzing Approaches
The research, which reviewed dozens of trials involving over 9,000 of patients, compared the effects of these new drugs with older methods.
Scientists emphasize that individuals who lose weight through lifestyle changes alone generally experience a less rapid weight regain—around 0.1 kg a month—post-intervention.
Understanding the Fast Rebound
Doctors suggest the way of the drugs accounts for the amplified regain.
These medications copy a natural hormone called GLP-1, which controls hunger.
"Artificially providing GLP-1 concentrations far above than normal may cause the system to produce less of its endogenous hormone, and may also diminish responsiveness to its effects," said Dr. Adam Collins, a nutrition specialist.
"Discontinuation of this medication results in hunger is no longer kept in check, making binge eating much more probable."
A Chronic Condition?
The NHS recommend the injections for individuals with obesity-related health risks, alongside recommended diet and exercise modifications.
Many experts say that, given the high risk of weight regain, the treatment should be considered life-long.
This perspective is supported by drug manufacturers, who note that the findings "emphasize the long-term character of excess weight," akin to managing conditions like hypertension.
User Testimonies
People who have discontinued the medication explain a intense resurgence of appetite.
"I experienced a trigger flipping and I was suddenly extremely hungry," said a patient.
The struggle is compounded if individuals have not established permanent dietary or behavioural modifications during treatment.
Growing Adoption
Figures show that a significant number of people in the UK have tried weight-loss jabs in the last 12 months, with desire remaining high.
- Adoption is more common among females than males.
- The 40s and 50s age group shows the highest usage rates.
- Many obtain the drugs through private prescriptions rather than the NHS.
Ultimately, researchers emphasize that while these medications are potent tools for weight loss, they are not a standalone cure and lasting health benefits likely depends on integrated lifestyle support.
