New research suggests that patients who stop using blockbuster GLP-1 drugs like Wegovy and Mounjaro tend to recover shed pounds at a significantly accelerated pace than those who stop traditional lifestyle regimens.
Published data in a prominent health publication shows that while overweight people frequently drop substantial amounts of their body weight while undergoing treatment, the mass returns at an estimated rate of 0.8 kg per month upon discontinuation.
"Users purchasing these drugs must be informed of the potential of quick weight regain when the medication ends," warns expert Dr. Susan Jebb.
Such speed of regain means a return to original mass within about a year and a half.
Weighing Therapies
The research, which examined dozens of trials involving thousands of participants, compared the results of the injectable medications with other pills.
The team emphasize that individuals who shed pounds through lifestyle changes alone usually have a less rapid weight regain—perhaps 100 grams monthly—once they finish.
The Reason for the Quick Regain
Experts propose the way of the injections is key to understanding the accelerated regain.
These medications copy a natural hormone called glucagon-like peptide-1, which moderates appetite.
"Artificially providing the hormone concentrations far above than normal could lead to the system to produce less of its own natural hormone, and may also diminish responsiveness to its effects," explained Dr. Adam Collins, a dietetics expert.
"Stopping of this GLP-1 'fix' leads to appetite is unsuppressed, making overeating far more likely."
A Lifelong Disease?
Health authorities recommend the injections for individuals with obesity-related medical conditions, accompanied by prescribed diet and exercise modifications.
Professionals contend that, due to the significant potential of weight regain, the treatment should be considered ongoing.
This view is echoed by drug manufacturers, who say that the results "emphasize the persistent nature of obesity," similar to managing conditions like high blood pressure.
Patient Experiences
Users who have stopped the medication describe a intense return of cravings.
"It was like a trigger activating and I was suddenly extremely hungry," said a patient.
The struggle is worsened if individuals have not established lasting dietary or behavioural modifications during therapy.
Widespread Adoption
Survey data indicate that a significant number of adults in the UK have tried these injections in the last 12 months, with desire remaining high.
- Adoption is higher among women than males.
- The 40s and 50s demographic shows the greatest level of interest.
- A large proportion obtain the medications through private prescriptions rather than the NHS.
Finally, experts stress that while the jabs are effective agents for shedding pounds, they are not a magic solution and long-term success likely depends on ongoing lifestyle management.
